dbf35e279f
was always curthread and totally unuseful. Tested by: Giovanni Trematerra <giovanni dot trematerra at gmail dot com>
2521 lines
62 KiB
C
2521 lines
62 KiB
C
/*-
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* Copyright (c) 1982, 1986, 1989, 1993, 1995
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* The Regents of the University of California. All rights reserved.
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* (c) UNIX System Laboratories, Inc.
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* All or some portions of this file are derived from material licensed
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* to the University of California by American Telephone and Telegraph
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* Co. or Unix System Laboratories, Inc. and are reproduced herein with
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* the permission of UNIX System Laboratories, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)ufs_vnops.c 8.27 (Berkeley) 5/27/95
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_mac.h"
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#include "opt_quota.h"
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#include "opt_suiddir.h"
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#include "opt_ufs.h"
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#include "opt_ffs.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/namei.h>
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#include <sys/kernel.h>
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#include <sys/fcntl.h>
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#include <sys/stat.h>
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#include <sys/bio.h>
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#include <sys/buf.h>
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#include <sys/mount.h>
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#include <sys/priv.h>
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#include <sys/refcount.h>
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#include <sys/unistd.h>
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#include <sys/vnode.h>
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#include <sys/dirent.h>
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#include <sys/lockf.h>
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#include <sys/conf.h>
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#include <sys/acl.h>
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#include <sys/jail.h>
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#include <machine/mutex.h>
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#include <security/mac/mac_framework.h>
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#include <sys/file.h> /* XXX */
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#include <vm/vm.h>
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#include <vm/vm_extern.h>
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#include <fs/fifofs/fifo.h>
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#include <ufs/ufs/acl.h>
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#include <ufs/ufs/extattr.h>
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#include <ufs/ufs/quota.h>
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#include <ufs/ufs/inode.h>
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#include <ufs/ufs/dir.h>
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#include <ufs/ufs/ufsmount.h>
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#include <ufs/ufs/ufs_extern.h>
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#ifdef UFS_DIRHASH
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#include <ufs/ufs/dirhash.h>
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#endif
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#ifdef UFS_GJOURNAL
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#include <ufs/ufs/gjournal.h>
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#endif
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#include <ufs/ffs/ffs_extern.h>
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static vop_access_t ufs_access;
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static int ufs_chmod(struct vnode *, int, struct ucred *, struct thread *);
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static int ufs_chown(struct vnode *, uid_t, gid_t, struct ucred *, struct thread *);
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static vop_close_t ufs_close;
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static vop_create_t ufs_create;
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static vop_getattr_t ufs_getattr;
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static vop_link_t ufs_link;
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static int ufs_makeinode(int mode, struct vnode *, struct vnode **, struct componentname *);
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static vop_mkdir_t ufs_mkdir;
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static vop_mknod_t ufs_mknod;
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static vop_open_t ufs_open;
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static vop_pathconf_t ufs_pathconf;
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static vop_print_t ufs_print;
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static vop_readlink_t ufs_readlink;
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static vop_remove_t ufs_remove;
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static vop_rename_t ufs_rename;
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static vop_rmdir_t ufs_rmdir;
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static vop_setattr_t ufs_setattr;
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static vop_strategy_t ufs_strategy;
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static vop_symlink_t ufs_symlink;
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static vop_whiteout_t ufs_whiteout;
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static vop_close_t ufsfifo_close;
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static vop_kqfilter_t ufsfifo_kqfilter;
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/*
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* A virgin directory (no blushing please).
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*/
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static struct dirtemplate mastertemplate = {
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0, 12, DT_DIR, 1, ".",
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0, DIRBLKSIZ - 12, DT_DIR, 2, ".."
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};
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static struct odirtemplate omastertemplate = {
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0, 12, 1, ".",
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0, DIRBLKSIZ - 12, 2, ".."
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};
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static void
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ufs_itimes_locked(struct vnode *vp)
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{
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struct inode *ip;
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struct timespec ts;
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ASSERT_VI_LOCKED(vp, __func__);
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ip = VTOI(vp);
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if ((vp->v_mount->mnt_flag & MNT_RDONLY) != 0)
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goto out;
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if ((ip->i_flag & (IN_ACCESS | IN_CHANGE | IN_UPDATE)) == 0)
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return;
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if ((vp->v_type == VBLK || vp->v_type == VCHR) && !DOINGSOFTDEP(vp))
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ip->i_flag |= IN_LAZYMOD;
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else if (((vp->v_mount->mnt_kern_flag &
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(MNTK_SUSPENDED | MNTK_SUSPEND)) == 0) ||
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(ip->i_flag & (IN_CHANGE | IN_UPDATE)))
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ip->i_flag |= IN_MODIFIED;
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else if (ip->i_flag & IN_ACCESS)
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ip->i_flag |= IN_LAZYACCESS;
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vfs_timestamp(&ts);
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if (ip->i_flag & IN_ACCESS) {
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DIP_SET(ip, i_atime, ts.tv_sec);
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DIP_SET(ip, i_atimensec, ts.tv_nsec);
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}
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if (ip->i_flag & IN_UPDATE) {
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DIP_SET(ip, i_mtime, ts.tv_sec);
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DIP_SET(ip, i_mtimensec, ts.tv_nsec);
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ip->i_modrev++;
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}
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if (ip->i_flag & IN_CHANGE) {
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DIP_SET(ip, i_ctime, ts.tv_sec);
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DIP_SET(ip, i_ctimensec, ts.tv_nsec);
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}
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out:
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ip->i_flag &= ~(IN_ACCESS | IN_CHANGE | IN_UPDATE);
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}
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void
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ufs_itimes(struct vnode *vp)
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{
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VI_LOCK(vp);
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ufs_itimes_locked(vp);
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VI_UNLOCK(vp);
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}
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/*
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* Create a regular file
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*/
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static int
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ufs_create(ap)
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struct vop_create_args /* {
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struct vnode *a_dvp;
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struct vnode **a_vpp;
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struct componentname *a_cnp;
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struct vattr *a_vap;
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} */ *ap;
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{
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int error;
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error =
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ufs_makeinode(MAKEIMODE(ap->a_vap->va_type, ap->a_vap->va_mode),
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ap->a_dvp, ap->a_vpp, ap->a_cnp);
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if (error)
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return (error);
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return (0);
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}
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/*
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* Mknod vnode call
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*/
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/* ARGSUSED */
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static int
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ufs_mknod(ap)
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struct vop_mknod_args /* {
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struct vnode *a_dvp;
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struct vnode **a_vpp;
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struct componentname *a_cnp;
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struct vattr *a_vap;
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} */ *ap;
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{
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struct vattr *vap = ap->a_vap;
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struct vnode **vpp = ap->a_vpp;
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struct inode *ip;
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ino_t ino;
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int error;
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error = ufs_makeinode(MAKEIMODE(vap->va_type, vap->va_mode),
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ap->a_dvp, vpp, ap->a_cnp);
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if (error)
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return (error);
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ip = VTOI(*vpp);
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ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE;
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if (vap->va_rdev != VNOVAL) {
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/*
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* Want to be able to use this to make badblock
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* inodes, so don't truncate the dev number.
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*/
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DIP_SET(ip, i_rdev, vap->va_rdev);
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}
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/*
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* Remove inode, then reload it through VFS_VGET so it is
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* checked to see if it is an alias of an existing entry in
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* the inode cache. XXX I don't believe this is necessary now.
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*/
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(*vpp)->v_type = VNON;
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ino = ip->i_number; /* Save this before vgone() invalidates ip. */
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vgone(*vpp);
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vput(*vpp);
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error = VFS_VGET(ap->a_dvp->v_mount, ino, LK_EXCLUSIVE, vpp);
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if (error) {
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*vpp = NULL;
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return (error);
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}
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return (0);
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}
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/*
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* Open called.
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*/
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/* ARGSUSED */
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static int
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ufs_open(struct vop_open_args *ap)
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{
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struct vnode *vp = ap->a_vp;
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struct inode *ip;
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if (vp->v_type == VCHR || vp->v_type == VBLK)
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return (EOPNOTSUPP);
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ip = VTOI(vp);
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/*
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* Files marked append-only must be opened for appending.
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*/
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if ((ip->i_flags & APPEND) &&
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(ap->a_mode & (FWRITE | O_APPEND)) == FWRITE)
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return (EPERM);
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vnode_create_vobject(vp, DIP(ip, i_size), ap->a_td);
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return (0);
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}
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/*
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* Close called.
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*
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* Update the times on the inode.
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*/
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/* ARGSUSED */
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static int
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ufs_close(ap)
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struct vop_close_args /* {
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struct vnode *a_vp;
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int a_fflag;
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struct ucred *a_cred;
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struct thread *a_td;
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} */ *ap;
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{
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struct vnode *vp = ap->a_vp;
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int usecount;
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VI_LOCK(vp);
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usecount = vp->v_usecount;
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if (usecount > 1)
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ufs_itimes_locked(vp);
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VI_UNLOCK(vp);
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return (0);
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}
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static int
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ufs_access(ap)
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struct vop_access_args /* {
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struct vnode *a_vp;
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int a_mode;
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struct ucred *a_cred;
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struct thread *a_td;
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} */ *ap;
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{
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struct vnode *vp = ap->a_vp;
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struct inode *ip = VTOI(vp);
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mode_t mode = ap->a_mode;
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int error;
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#ifdef QUOTA
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int relocked;
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#endif
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#ifdef UFS_ACL
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struct acl *acl;
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#endif
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/*
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* Disallow write attempts on read-only filesystems;
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* unless the file is a socket, fifo, or a block or
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* character device resident on the filesystem.
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*/
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if (mode & VWRITE) {
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switch (vp->v_type) {
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case VDIR:
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case VLNK:
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case VREG:
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if (vp->v_mount->mnt_flag & MNT_RDONLY)
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return (EROFS);
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#ifdef QUOTA
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if (VOP_ISLOCKED(vp) != LK_EXCLUSIVE) {
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relocked = 1;
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vhold(vp);
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vn_lock(vp, LK_UPGRADE | LK_RETRY);
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VI_LOCK(vp);
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vdropl(vp);
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if (vp->v_iflag & VI_DOOMED) {
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VI_UNLOCK(vp);
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error = ENOENT;
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goto relock;
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}
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VI_UNLOCK(vp);
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} else
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relocked = 0;
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error = getinoquota(ip);
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relock:
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if (relocked)
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vn_lock(vp, LK_DOWNGRADE | LK_RETRY);
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if (error != 0)
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return (error);
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#endif
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break;
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default:
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break;
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}
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}
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|
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/* If immutable bit set, nobody gets to write it. */
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if ((mode & VWRITE) && (ip->i_flags & (IMMUTABLE | SF_SNAPSHOT)))
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return (EPERM);
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|
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#ifdef UFS_ACL
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if ((vp->v_mount->mnt_flag & MNT_ACLS) != 0) {
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acl = uma_zalloc(acl_zone, M_WAITOK);
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error = VOP_GETACL(vp, ACL_TYPE_ACCESS, acl, ap->a_cred,
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ap->a_td);
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switch (error) {
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case EOPNOTSUPP:
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error = vaccess(vp->v_type, ip->i_mode, ip->i_uid,
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ip->i_gid, ap->a_mode, ap->a_cred, NULL);
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break;
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case 0:
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error = vaccess_acl_posix1e(vp->v_type, ip->i_uid,
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ip->i_gid, acl, ap->a_mode, ap->a_cred, NULL);
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break;
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default:
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printf(
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"ufs_access(): Error retrieving ACL on object (%d).\n",
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error);
|
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/*
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* XXX: Fall back until debugged. Should
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* eventually possibly log an error, and return
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* EPERM for safety.
|
|
*/
|
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error = vaccess(vp->v_type, ip->i_mode, ip->i_uid,
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ip->i_gid, ap->a_mode, ap->a_cred, NULL);
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}
|
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uma_zfree(acl_zone, acl);
|
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} else
|
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#endif /* !UFS_ACL */
|
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error = vaccess(vp->v_type, ip->i_mode, ip->i_uid, ip->i_gid,
|
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ap->a_mode, ap->a_cred, NULL);
|
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return (error);
|
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}
|
|
|
|
/* ARGSUSED */
|
|
static int
|
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ufs_getattr(ap)
|
|
struct vop_getattr_args /* {
|
|
struct vnode *a_vp;
|
|
struct vattr *a_vap;
|
|
struct ucred *a_cred;
|
|
} */ *ap;
|
|
{
|
|
struct vnode *vp = ap->a_vp;
|
|
struct inode *ip = VTOI(vp);
|
|
struct vattr *vap = ap->a_vap;
|
|
|
|
VI_LOCK(vp);
|
|
ufs_itimes_locked(vp);
|
|
if (ip->i_ump->um_fstype == UFS1) {
|
|
vap->va_atime.tv_sec = ip->i_din1->di_atime;
|
|
vap->va_atime.tv_nsec = ip->i_din1->di_atimensec;
|
|
} else {
|
|
vap->va_atime.tv_sec = ip->i_din2->di_atime;
|
|
vap->va_atime.tv_nsec = ip->i_din2->di_atimensec;
|
|
}
|
|
VI_UNLOCK(vp);
|
|
/*
|
|
* Copy from inode table
|
|
*/
|
|
vap->va_fsid = dev2udev(ip->i_dev);
|
|
vap->va_fileid = ip->i_number;
|
|
vap->va_mode = ip->i_mode & ~IFMT;
|
|
vap->va_nlink = ip->i_effnlink;
|
|
vap->va_uid = ip->i_uid;
|
|
vap->va_gid = ip->i_gid;
|
|
if (ip->i_ump->um_fstype == UFS1) {
|
|
vap->va_rdev = ip->i_din1->di_rdev;
|
|
vap->va_size = ip->i_din1->di_size;
|
|
vap->va_mtime.tv_sec = ip->i_din1->di_mtime;
|
|
vap->va_mtime.tv_nsec = ip->i_din1->di_mtimensec;
|
|
vap->va_ctime.tv_sec = ip->i_din1->di_ctime;
|
|
vap->va_ctime.tv_nsec = ip->i_din1->di_ctimensec;
|
|
vap->va_birthtime.tv_sec = 0;
|
|
vap->va_birthtime.tv_nsec = 0;
|
|
vap->va_bytes = dbtob((u_quad_t)ip->i_din1->di_blocks);
|
|
} else {
|
|
vap->va_rdev = ip->i_din2->di_rdev;
|
|
vap->va_size = ip->i_din2->di_size;
|
|
vap->va_mtime.tv_sec = ip->i_din2->di_mtime;
|
|
vap->va_mtime.tv_nsec = ip->i_din2->di_mtimensec;
|
|
vap->va_ctime.tv_sec = ip->i_din2->di_ctime;
|
|
vap->va_ctime.tv_nsec = ip->i_din2->di_ctimensec;
|
|
vap->va_birthtime.tv_sec = ip->i_din2->di_birthtime;
|
|
vap->va_birthtime.tv_nsec = ip->i_din2->di_birthnsec;
|
|
vap->va_bytes = dbtob((u_quad_t)ip->i_din2->di_blocks);
|
|
}
|
|
vap->va_flags = ip->i_flags;
|
|
vap->va_gen = ip->i_gen;
|
|
vap->va_blocksize = vp->v_mount->mnt_stat.f_iosize;
|
|
vap->va_type = IFTOVT(ip->i_mode);
|
|
vap->va_filerev = ip->i_modrev;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Set attribute vnode op. called from several syscalls
|
|
*/
|
|
static int
|
|
ufs_setattr(ap)
|
|
struct vop_setattr_args /* {
|
|
struct vnode *a_vp;
|
|
struct vattr *a_vap;
|
|
struct ucred *a_cred;
|
|
} */ *ap;
|
|
{
|
|
struct vattr *vap = ap->a_vap;
|
|
struct vnode *vp = ap->a_vp;
|
|
struct inode *ip = VTOI(vp);
|
|
struct ucred *cred = ap->a_cred;
|
|
struct thread *td = curthread;
|
|
int error;
|
|
|
|
/*
|
|
* Check for unsettable attributes.
|
|
*/
|
|
if ((vap->va_type != VNON) || (vap->va_nlink != VNOVAL) ||
|
|
(vap->va_fsid != VNOVAL) || (vap->va_fileid != VNOVAL) ||
|
|
(vap->va_blocksize != VNOVAL) || (vap->va_rdev != VNOVAL) ||
|
|
((int)vap->va_bytes != VNOVAL) || (vap->va_gen != VNOVAL)) {
|
|
return (EINVAL);
|
|
}
|
|
/*
|
|
* Mark for update the file's access time for vfs_mark_atime().
|
|
* We are doing this here to avoid some of the checks done
|
|
* below -- this operation is done by request of the kernel and
|
|
* should bypass some security checks. Things like read-only
|
|
* checks get handled by other levels (e.g., ffs_update()).
|
|
*/
|
|
if (vap->va_vaflags & VA_MARK_ATIME) {
|
|
ip->i_flag |= IN_ACCESS;
|
|
return (0);
|
|
}
|
|
if (vap->va_flags != VNOVAL) {
|
|
if (vp->v_mount->mnt_flag & MNT_RDONLY)
|
|
return (EROFS);
|
|
/*
|
|
* Callers may only modify the file flags on objects they
|
|
* have VADMIN rights for.
|
|
*/
|
|
if ((error = VOP_ACCESS(vp, VADMIN, cred, td)))
|
|
return (error);
|
|
/*
|
|
* Unprivileged processes are not permitted to unset system
|
|
* flags, or modify flags if any system flags are set.
|
|
* Privileged non-jail processes may not modify system flags
|
|
* if securelevel > 0 and any existing system flags are set.
|
|
* Privileged jail processes behave like privileged non-jail
|
|
* processes if the security.jail.chflags_allowed sysctl is
|
|
* is non-zero; otherwise, they behave like unprivileged
|
|
* processes.
|
|
*/
|
|
if (!priv_check_cred(cred, PRIV_VFS_SYSFLAGS, 0)) {
|
|
if (ip->i_flags
|
|
& (SF_NOUNLINK | SF_IMMUTABLE | SF_APPEND)) {
|
|
error = securelevel_gt(cred, 0);
|
|
if (error)
|
|
return (error);
|
|
}
|
|
/* Snapshot flag cannot be set or cleared */
|
|
if (((vap->va_flags & SF_SNAPSHOT) != 0 &&
|
|
(ip->i_flags & SF_SNAPSHOT) == 0) ||
|
|
((vap->va_flags & SF_SNAPSHOT) == 0 &&
|
|
(ip->i_flags & SF_SNAPSHOT) != 0))
|
|
return (EPERM);
|
|
ip->i_flags = vap->va_flags;
|
|
DIP_SET(ip, i_flags, vap->va_flags);
|
|
} else {
|
|
if (ip->i_flags
|
|
& (SF_NOUNLINK | SF_IMMUTABLE | SF_APPEND) ||
|
|
(vap->va_flags & UF_SETTABLE) != vap->va_flags)
|
|
return (EPERM);
|
|
ip->i_flags &= SF_SETTABLE;
|
|
ip->i_flags |= (vap->va_flags & UF_SETTABLE);
|
|
DIP_SET(ip, i_flags, ip->i_flags);
|
|
}
|
|
ip->i_flag |= IN_CHANGE;
|
|
if (vap->va_flags & (IMMUTABLE | APPEND))
|
|
return (0);
|
|
}
|
|
if (ip->i_flags & (IMMUTABLE | APPEND))
|
|
return (EPERM);
|
|
/*
|
|
* Go through the fields and update iff not VNOVAL.
|
|
*/
|
|
if (vap->va_uid != (uid_t)VNOVAL || vap->va_gid != (gid_t)VNOVAL) {
|
|
if (vp->v_mount->mnt_flag & MNT_RDONLY)
|
|
return (EROFS);
|
|
if ((error = ufs_chown(vp, vap->va_uid, vap->va_gid, cred,
|
|
td)) != 0)
|
|
return (error);
|
|
}
|
|
if (vap->va_size != VNOVAL) {
|
|
/*
|
|
* XXX most of the following special cases should be in
|
|
* callers instead of in N filesystems. The VDIR check
|
|
* mostly already is.
|
|
*/
|
|
switch (vp->v_type) {
|
|
case VDIR:
|
|
return (EISDIR);
|
|
case VLNK:
|
|
case VREG:
|
|
/*
|
|
* Truncation should have an effect in these cases.
|
|
* Disallow it if the filesystem is read-only or
|
|
* the file is being snapshotted.
|
|
*/
|
|
if (vp->v_mount->mnt_flag & MNT_RDONLY)
|
|
return (EROFS);
|
|
if ((ip->i_flags & SF_SNAPSHOT) != 0)
|
|
return (EPERM);
|
|
break;
|
|
default:
|
|
/*
|
|
* According to POSIX, the result is unspecified
|
|
* for file types other than regular files,
|
|
* directories and shared memory objects. We
|
|
* don't support shared memory objects in the file
|
|
* system, and have dubious support for truncating
|
|
* symlinks. Just ignore the request in other cases.
|
|
*/
|
|
return (0);
|
|
}
|
|
if ((error = UFS_TRUNCATE(vp, vap->va_size, IO_NORMAL,
|
|
cred, td)) != 0)
|
|
return (error);
|
|
}
|
|
if (vap->va_atime.tv_sec != VNOVAL ||
|
|
vap->va_mtime.tv_sec != VNOVAL ||
|
|
vap->va_birthtime.tv_sec != VNOVAL) {
|
|
if (vp->v_mount->mnt_flag & MNT_RDONLY)
|
|
return (EROFS);
|
|
if ((ip->i_flags & SF_SNAPSHOT) != 0)
|
|
return (EPERM);
|
|
/*
|
|
* From utimes(2):
|
|
* If times is NULL, ... The caller must be the owner of
|
|
* the file, have permission to write the file, or be the
|
|
* super-user.
|
|
* If times is non-NULL, ... The caller must be the owner of
|
|
* the file or be the super-user.
|
|
*
|
|
* Possibly for historical reasons, try to use VADMIN in
|
|
* preference to VWRITE for a NULL timestamp. This means we
|
|
* will return EACCES in preference to EPERM if neither
|
|
* check succeeds.
|
|
*/
|
|
if (vap->va_vaflags & VA_UTIMES_NULL) {
|
|
error = VOP_ACCESS(vp, VADMIN, cred, td);
|
|
if (error)
|
|
error = VOP_ACCESS(vp, VWRITE, cred, td);
|
|
} else
|
|
error = VOP_ACCESS(vp, VADMIN, cred, td);
|
|
if (error)
|
|
return (error);
|
|
if (vap->va_atime.tv_sec != VNOVAL)
|
|
ip->i_flag |= IN_ACCESS;
|
|
if (vap->va_mtime.tv_sec != VNOVAL)
|
|
ip->i_flag |= IN_CHANGE | IN_UPDATE;
|
|
if (vap->va_birthtime.tv_sec != VNOVAL &&
|
|
ip->i_ump->um_fstype == UFS2)
|
|
ip->i_flag |= IN_MODIFIED;
|
|
ufs_itimes(vp);
|
|
if (vap->va_atime.tv_sec != VNOVAL) {
|
|
DIP_SET(ip, i_atime, vap->va_atime.tv_sec);
|
|
DIP_SET(ip, i_atimensec, vap->va_atime.tv_nsec);
|
|
}
|
|
if (vap->va_mtime.tv_sec != VNOVAL) {
|
|
DIP_SET(ip, i_mtime, vap->va_mtime.tv_sec);
|
|
DIP_SET(ip, i_mtimensec, vap->va_mtime.tv_nsec);
|
|
}
|
|
if (vap->va_birthtime.tv_sec != VNOVAL &&
|
|
ip->i_ump->um_fstype == UFS2) {
|
|
ip->i_din2->di_birthtime = vap->va_birthtime.tv_sec;
|
|
ip->i_din2->di_birthnsec = vap->va_birthtime.tv_nsec;
|
|
}
|
|
error = UFS_UPDATE(vp, 0);
|
|
if (error)
|
|
return (error);
|
|
}
|
|
error = 0;
|
|
if (vap->va_mode != (mode_t)VNOVAL) {
|
|
if (vp->v_mount->mnt_flag & MNT_RDONLY)
|
|
return (EROFS);
|
|
if ((ip->i_flags & SF_SNAPSHOT) != 0 && (vap->va_mode &
|
|
(S_IXUSR | S_IWUSR | S_IXGRP | S_IWGRP | S_IXOTH | S_IWOTH)))
|
|
return (EPERM);
|
|
error = ufs_chmod(vp, (int)vap->va_mode, cred, td);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Change the mode on a file.
|
|
* Inode must be locked before calling.
|
|
*/
|
|
static int
|
|
ufs_chmod(vp, mode, cred, td)
|
|
struct vnode *vp;
|
|
int mode;
|
|
struct ucred *cred;
|
|
struct thread *td;
|
|
{
|
|
struct inode *ip = VTOI(vp);
|
|
int error;
|
|
|
|
/*
|
|
* To modify the permissions on a file, must possess VADMIN
|
|
* for that file.
|
|
*/
|
|
if ((error = VOP_ACCESS(vp, VADMIN, cred, td)))
|
|
return (error);
|
|
/*
|
|
* Privileged processes may set the sticky bit on non-directories,
|
|
* as well as set the setgid bit on a file with a group that the
|
|
* process is not a member of. Both of these are allowed in
|
|
* jail(8).
|
|
*/
|
|
if (vp->v_type != VDIR && (mode & S_ISTXT)) {
|
|
if (priv_check_cred(cred, PRIV_VFS_STICKYFILE, 0))
|
|
return (EFTYPE);
|
|
}
|
|
if (!groupmember(ip->i_gid, cred) && (mode & ISGID)) {
|
|
error = priv_check_cred(cred, PRIV_VFS_SETGID, 0);
|
|
if (error)
|
|
return (error);
|
|
}
|
|
ip->i_mode &= ~ALLPERMS;
|
|
ip->i_mode |= (mode & ALLPERMS);
|
|
DIP_SET(ip, i_mode, ip->i_mode);
|
|
ip->i_flag |= IN_CHANGE;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Perform chown operation on inode ip;
|
|
* inode must be locked prior to call.
|
|
*/
|
|
static int
|
|
ufs_chown(vp, uid, gid, cred, td)
|
|
struct vnode *vp;
|
|
uid_t uid;
|
|
gid_t gid;
|
|
struct ucred *cred;
|
|
struct thread *td;
|
|
{
|
|
struct inode *ip = VTOI(vp);
|
|
uid_t ouid;
|
|
gid_t ogid;
|
|
int error = 0;
|
|
#ifdef QUOTA
|
|
int i;
|
|
ufs2_daddr_t change;
|
|
#endif
|
|
|
|
if (uid == (uid_t)VNOVAL)
|
|
uid = ip->i_uid;
|
|
if (gid == (gid_t)VNOVAL)
|
|
gid = ip->i_gid;
|
|
/*
|
|
* To modify the ownership of a file, must possess VADMIN for that
|
|
* file.
|
|
*/
|
|
if ((error = VOP_ACCESS(vp, VADMIN, cred, td)))
|
|
return (error);
|
|
/*
|
|
* To change the owner of a file, or change the group of a file to a
|
|
* group of which we are not a member, the caller must have
|
|
* privilege.
|
|
*/
|
|
if ((uid != ip->i_uid ||
|
|
(gid != ip->i_gid && !groupmember(gid, cred))) &&
|
|
(error = priv_check_cred(cred, PRIV_VFS_CHOWN, 0)))
|
|
return (error);
|
|
ogid = ip->i_gid;
|
|
ouid = ip->i_uid;
|
|
#ifdef QUOTA
|
|
if ((error = getinoquota(ip)) != 0)
|
|
return (error);
|
|
if (ouid == uid) {
|
|
dqrele(vp, ip->i_dquot[USRQUOTA]);
|
|
ip->i_dquot[USRQUOTA] = NODQUOT;
|
|
}
|
|
if (ogid == gid) {
|
|
dqrele(vp, ip->i_dquot[GRPQUOTA]);
|
|
ip->i_dquot[GRPQUOTA] = NODQUOT;
|
|
}
|
|
change = DIP(ip, i_blocks);
|
|
(void) chkdq(ip, -change, cred, CHOWN);
|
|
(void) chkiq(ip, -1, cred, CHOWN);
|
|
for (i = 0; i < MAXQUOTAS; i++) {
|
|
dqrele(vp, ip->i_dquot[i]);
|
|
ip->i_dquot[i] = NODQUOT;
|
|
}
|
|
#endif
|
|
ip->i_gid = gid;
|
|
DIP_SET(ip, i_gid, gid);
|
|
ip->i_uid = uid;
|
|
DIP_SET(ip, i_uid, uid);
|
|
#ifdef QUOTA
|
|
if ((error = getinoquota(ip)) == 0) {
|
|
if (ouid == uid) {
|
|
dqrele(vp, ip->i_dquot[USRQUOTA]);
|
|
ip->i_dquot[USRQUOTA] = NODQUOT;
|
|
}
|
|
if (ogid == gid) {
|
|
dqrele(vp, ip->i_dquot[GRPQUOTA]);
|
|
ip->i_dquot[GRPQUOTA] = NODQUOT;
|
|
}
|
|
if ((error = chkdq(ip, change, cred, CHOWN)) == 0) {
|
|
if ((error = chkiq(ip, 1, cred, CHOWN)) == 0)
|
|
goto good;
|
|
else
|
|
(void) chkdq(ip, -change, cred, CHOWN|FORCE);
|
|
}
|
|
for (i = 0; i < MAXQUOTAS; i++) {
|
|
dqrele(vp, ip->i_dquot[i]);
|
|
ip->i_dquot[i] = NODQUOT;
|
|
}
|
|
}
|
|
ip->i_gid = ogid;
|
|
DIP_SET(ip, i_gid, ogid);
|
|
ip->i_uid = ouid;
|
|
DIP_SET(ip, i_uid, ouid);
|
|
if (getinoquota(ip) == 0) {
|
|
if (ouid == uid) {
|
|
dqrele(vp, ip->i_dquot[USRQUOTA]);
|
|
ip->i_dquot[USRQUOTA] = NODQUOT;
|
|
}
|
|
if (ogid == gid) {
|
|
dqrele(vp, ip->i_dquot[GRPQUOTA]);
|
|
ip->i_dquot[GRPQUOTA] = NODQUOT;
|
|
}
|
|
(void) chkdq(ip, change, cred, FORCE|CHOWN);
|
|
(void) chkiq(ip, 1, cred, FORCE|CHOWN);
|
|
(void) getinoquota(ip);
|
|
}
|
|
return (error);
|
|
good:
|
|
if (getinoquota(ip))
|
|
panic("ufs_chown: lost quota");
|
|
#endif /* QUOTA */
|
|
ip->i_flag |= IN_CHANGE;
|
|
if ((ip->i_mode & (ISUID | ISGID)) && (ouid != uid || ogid != gid)) {
|
|
if (priv_check_cred(cred, PRIV_VFS_RETAINSUGID, 0)) {
|
|
ip->i_mode &= ~(ISUID | ISGID);
|
|
DIP_SET(ip, i_mode, ip->i_mode);
|
|
}
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ufs_remove(ap)
|
|
struct vop_remove_args /* {
|
|
struct vnode *a_dvp;
|
|
struct vnode *a_vp;
|
|
struct componentname *a_cnp;
|
|
} */ *ap;
|
|
{
|
|
struct inode *ip;
|
|
struct vnode *vp = ap->a_vp;
|
|
struct vnode *dvp = ap->a_dvp;
|
|
int error;
|
|
struct thread *td;
|
|
|
|
td = curthread;
|
|
ip = VTOI(vp);
|
|
if ((ip->i_flags & (NOUNLINK | IMMUTABLE | APPEND)) ||
|
|
(VTOI(dvp)->i_flags & APPEND)) {
|
|
error = EPERM;
|
|
goto out;
|
|
}
|
|
#ifdef UFS_GJOURNAL
|
|
ufs_gjournal_orphan(vp);
|
|
#endif
|
|
error = ufs_dirremove(dvp, ip, ap->a_cnp->cn_flags, 0);
|
|
if (ip->i_nlink <= 0)
|
|
vp->v_vflag |= VV_NOSYNC;
|
|
if ((ip->i_flags & SF_SNAPSHOT) != 0) {
|
|
/*
|
|
* Avoid deadlock where another thread is trying to
|
|
* update the inodeblock for dvp and is waiting on
|
|
* snaplk. Temporary unlock the vnode lock for the
|
|
* unlinked file and sync the directory. This should
|
|
* allow vput() of the directory to not block later on
|
|
* while holding the snapshot vnode locked, assuming
|
|
* that the directory hasn't been unlinked too.
|
|
*/
|
|
VOP_UNLOCK(vp, 0);
|
|
(void) VOP_FSYNC(dvp, MNT_WAIT, td);
|
|
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
|
|
}
|
|
out:
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* link vnode call
|
|
*/
|
|
static int
|
|
ufs_link(ap)
|
|
struct vop_link_args /* {
|
|
struct vnode *a_tdvp;
|
|
struct vnode *a_vp;
|
|
struct componentname *a_cnp;
|
|
} */ *ap;
|
|
{
|
|
struct vnode *vp = ap->a_vp;
|
|
struct vnode *tdvp = ap->a_tdvp;
|
|
struct componentname *cnp = ap->a_cnp;
|
|
struct inode *ip;
|
|
struct direct newdir;
|
|
int error;
|
|
|
|
#ifdef INVARIANTS
|
|
if ((cnp->cn_flags & HASBUF) == 0)
|
|
panic("ufs_link: no name");
|
|
#endif
|
|
if (tdvp->v_mount != vp->v_mount) {
|
|
error = EXDEV;
|
|
goto out;
|
|
}
|
|
ip = VTOI(vp);
|
|
if ((nlink_t)ip->i_nlink >= LINK_MAX) {
|
|
error = EMLINK;
|
|
goto out;
|
|
}
|
|
if (ip->i_flags & (IMMUTABLE | APPEND)) {
|
|
error = EPERM;
|
|
goto out;
|
|
}
|
|
ip->i_effnlink++;
|
|
ip->i_nlink++;
|
|
DIP_SET(ip, i_nlink, ip->i_nlink);
|
|
ip->i_flag |= IN_CHANGE;
|
|
if (DOINGSOFTDEP(vp))
|
|
softdep_change_linkcnt(ip);
|
|
error = UFS_UPDATE(vp, !(DOINGSOFTDEP(vp) | DOINGASYNC(vp)));
|
|
if (!error) {
|
|
ufs_makedirentry(ip, cnp, &newdir);
|
|
error = ufs_direnter(tdvp, vp, &newdir, cnp, NULL);
|
|
}
|
|
|
|
if (error) {
|
|
ip->i_effnlink--;
|
|
ip->i_nlink--;
|
|
DIP_SET(ip, i_nlink, ip->i_nlink);
|
|
ip->i_flag |= IN_CHANGE;
|
|
if (DOINGSOFTDEP(vp))
|
|
softdep_change_linkcnt(ip);
|
|
}
|
|
out:
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* whiteout vnode call
|
|
*/
|
|
static int
|
|
ufs_whiteout(ap)
|
|
struct vop_whiteout_args /* {
|
|
struct vnode *a_dvp;
|
|
struct componentname *a_cnp;
|
|
int a_flags;
|
|
} */ *ap;
|
|
{
|
|
struct vnode *dvp = ap->a_dvp;
|
|
struct componentname *cnp = ap->a_cnp;
|
|
struct direct newdir;
|
|
int error = 0;
|
|
|
|
switch (ap->a_flags) {
|
|
case LOOKUP:
|
|
/* 4.4 format directories support whiteout operations */
|
|
if (dvp->v_mount->mnt_maxsymlinklen > 0)
|
|
return (0);
|
|
return (EOPNOTSUPP);
|
|
|
|
case CREATE:
|
|
/* create a new directory whiteout */
|
|
#ifdef INVARIANTS
|
|
if ((cnp->cn_flags & SAVENAME) == 0)
|
|
panic("ufs_whiteout: missing name");
|
|
if (dvp->v_mount->mnt_maxsymlinklen <= 0)
|
|
panic("ufs_whiteout: old format filesystem");
|
|
#endif
|
|
|
|
newdir.d_ino = WINO;
|
|
newdir.d_namlen = cnp->cn_namelen;
|
|
bcopy(cnp->cn_nameptr, newdir.d_name, (unsigned)cnp->cn_namelen + 1);
|
|
newdir.d_type = DT_WHT;
|
|
error = ufs_direnter(dvp, NULL, &newdir, cnp, NULL);
|
|
break;
|
|
|
|
case DELETE:
|
|
/* remove an existing directory whiteout */
|
|
#ifdef INVARIANTS
|
|
if (dvp->v_mount->mnt_maxsymlinklen <= 0)
|
|
panic("ufs_whiteout: old format filesystem");
|
|
#endif
|
|
|
|
cnp->cn_flags &= ~DOWHITEOUT;
|
|
error = ufs_dirremove(dvp, NULL, cnp->cn_flags, 0);
|
|
break;
|
|
default:
|
|
panic("ufs_whiteout: unknown op");
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Rename system call.
|
|
* rename("foo", "bar");
|
|
* is essentially
|
|
* unlink("bar");
|
|
* link("foo", "bar");
|
|
* unlink("foo");
|
|
* but ``atomically''. Can't do full commit without saving state in the
|
|
* inode on disk which isn't feasible at this time. Best we can do is
|
|
* always guarantee the target exists.
|
|
*
|
|
* Basic algorithm is:
|
|
*
|
|
* 1) Bump link count on source while we're linking it to the
|
|
* target. This also ensure the inode won't be deleted out
|
|
* from underneath us while we work (it may be truncated by
|
|
* a concurrent `trunc' or `open' for creation).
|
|
* 2) Link source to destination. If destination already exists,
|
|
* delete it first.
|
|
* 3) Unlink source reference to inode if still around. If a
|
|
* directory was moved and the parent of the destination
|
|
* is different from the source, patch the ".." entry in the
|
|
* directory.
|
|
*/
|
|
static int
|
|
ufs_rename(ap)
|
|
struct vop_rename_args /* {
|
|
struct vnode *a_fdvp;
|
|
struct vnode *a_fvp;
|
|
struct componentname *a_fcnp;
|
|
struct vnode *a_tdvp;
|
|
struct vnode *a_tvp;
|
|
struct componentname *a_tcnp;
|
|
} */ *ap;
|
|
{
|
|
struct vnode *tvp = ap->a_tvp;
|
|
struct vnode *tdvp = ap->a_tdvp;
|
|
struct vnode *fvp = ap->a_fvp;
|
|
struct vnode *fdvp = ap->a_fdvp;
|
|
struct componentname *tcnp = ap->a_tcnp;
|
|
struct componentname *fcnp = ap->a_fcnp;
|
|
struct thread *td = fcnp->cn_thread;
|
|
struct inode *ip, *xp, *dp;
|
|
struct direct newdir;
|
|
int doingdirectory = 0, oldparent = 0, newparent = 0;
|
|
int error = 0, ioflag;
|
|
|
|
#ifdef INVARIANTS
|
|
if ((tcnp->cn_flags & HASBUF) == 0 ||
|
|
(fcnp->cn_flags & HASBUF) == 0)
|
|
panic("ufs_rename: no name");
|
|
#endif
|
|
/*
|
|
* Check for cross-device rename.
|
|
*/
|
|
if ((fvp->v_mount != tdvp->v_mount) ||
|
|
(tvp && (fvp->v_mount != tvp->v_mount))) {
|
|
error = EXDEV;
|
|
abortit:
|
|
if (tdvp == tvp)
|
|
vrele(tdvp);
|
|
else
|
|
vput(tdvp);
|
|
if (tvp)
|
|
vput(tvp);
|
|
vrele(fdvp);
|
|
vrele(fvp);
|
|
return (error);
|
|
}
|
|
|
|
if (tvp && ((VTOI(tvp)->i_flags & (NOUNLINK | IMMUTABLE | APPEND)) ||
|
|
(VTOI(tdvp)->i_flags & APPEND))) {
|
|
error = EPERM;
|
|
goto abortit;
|
|
}
|
|
|
|
/*
|
|
* Renaming a file to itself has no effect. The upper layers should
|
|
* not call us in that case. Temporarily just warn if they do.
|
|
*/
|
|
if (fvp == tvp) {
|
|
printf("ufs_rename: fvp == tvp (can't happen)\n");
|
|
error = 0;
|
|
goto abortit;
|
|
}
|
|
|
|
if ((error = vn_lock(fvp, LK_EXCLUSIVE)) != 0)
|
|
goto abortit;
|
|
dp = VTOI(fdvp);
|
|
ip = VTOI(fvp);
|
|
if (ip->i_nlink >= LINK_MAX) {
|
|
VOP_UNLOCK(fvp, 0);
|
|
error = EMLINK;
|
|
goto abortit;
|
|
}
|
|
if ((ip->i_flags & (NOUNLINK | IMMUTABLE | APPEND))
|
|
|| (dp->i_flags & APPEND)) {
|
|
VOP_UNLOCK(fvp, 0);
|
|
error = EPERM;
|
|
goto abortit;
|
|
}
|
|
if ((ip->i_mode & IFMT) == IFDIR) {
|
|
/*
|
|
* Avoid ".", "..", and aliases of "." for obvious reasons.
|
|
*/
|
|
if ((fcnp->cn_namelen == 1 && fcnp->cn_nameptr[0] == '.') ||
|
|
dp == ip || (fcnp->cn_flags | tcnp->cn_flags) & ISDOTDOT ||
|
|
(ip->i_flag & IN_RENAME)) {
|
|
VOP_UNLOCK(fvp, 0);
|
|
error = EINVAL;
|
|
goto abortit;
|
|
}
|
|
ip->i_flag |= IN_RENAME;
|
|
oldparent = dp->i_number;
|
|
doingdirectory = 1;
|
|
}
|
|
vrele(fdvp);
|
|
|
|
/*
|
|
* When the target exists, both the directory
|
|
* and target vnodes are returned locked.
|
|
*/
|
|
dp = VTOI(tdvp);
|
|
xp = NULL;
|
|
if (tvp)
|
|
xp = VTOI(tvp);
|
|
|
|
/*
|
|
* 1) Bump link count while we're moving stuff
|
|
* around. If we crash somewhere before
|
|
* completing our work, the link count
|
|
* may be wrong, but correctable.
|
|
*/
|
|
ip->i_effnlink++;
|
|
ip->i_nlink++;
|
|
DIP_SET(ip, i_nlink, ip->i_nlink);
|
|
ip->i_flag |= IN_CHANGE;
|
|
if (DOINGSOFTDEP(fvp))
|
|
softdep_change_linkcnt(ip);
|
|
if ((error = UFS_UPDATE(fvp, !(DOINGSOFTDEP(fvp) |
|
|
DOINGASYNC(fvp)))) != 0) {
|
|
VOP_UNLOCK(fvp, 0);
|
|
goto bad;
|
|
}
|
|
|
|
/*
|
|
* If ".." must be changed (ie the directory gets a new
|
|
* parent) then the source directory must not be in the
|
|
* directory hierarchy above the target, as this would
|
|
* orphan everything below the source directory. Also
|
|
* the user must have write permission in the source so
|
|
* as to be able to change "..". We must repeat the call
|
|
* to namei, as the parent directory is unlocked by the
|
|
* call to checkpath().
|
|
*/
|
|
error = VOP_ACCESS(fvp, VWRITE, tcnp->cn_cred, tcnp->cn_thread);
|
|
VOP_UNLOCK(fvp, 0);
|
|
if (oldparent != dp->i_number)
|
|
newparent = dp->i_number;
|
|
if (doingdirectory && newparent) {
|
|
if (error) /* write access check above */
|
|
goto bad;
|
|
if (xp != NULL)
|
|
vput(tvp);
|
|
error = ufs_checkpath(ip, dp, tcnp->cn_cred);
|
|
if (error)
|
|
goto out;
|
|
if ((tcnp->cn_flags & SAVESTART) == 0)
|
|
panic("ufs_rename: lost to startdir");
|
|
VREF(tdvp);
|
|
error = relookup(tdvp, &tvp, tcnp);
|
|
if (error)
|
|
goto out;
|
|
vrele(tdvp);
|
|
dp = VTOI(tdvp);
|
|
xp = NULL;
|
|
if (tvp)
|
|
xp = VTOI(tvp);
|
|
}
|
|
/*
|
|
* 2) If target doesn't exist, link the target
|
|
* to the source and unlink the source.
|
|
* Otherwise, rewrite the target directory
|
|
* entry to reference the source inode and
|
|
* expunge the original entry's existence.
|
|
*/
|
|
if (xp == NULL) {
|
|
if (dp->i_dev != ip->i_dev)
|
|
panic("ufs_rename: EXDEV");
|
|
/*
|
|
* Account for ".." in new directory.
|
|
* When source and destination have the same
|
|
* parent we don't fool with the link count.
|
|
*/
|
|
if (doingdirectory && newparent) {
|
|
if ((nlink_t)dp->i_nlink >= LINK_MAX) {
|
|
error = EMLINK;
|
|
goto bad;
|
|
}
|
|
dp->i_effnlink++;
|
|
dp->i_nlink++;
|
|
DIP_SET(dp, i_nlink, dp->i_nlink);
|
|
dp->i_flag |= IN_CHANGE;
|
|
if (DOINGSOFTDEP(tdvp))
|
|
softdep_change_linkcnt(dp);
|
|
error = UFS_UPDATE(tdvp, !(DOINGSOFTDEP(tdvp) |
|
|
DOINGASYNC(tdvp)));
|
|
if (error)
|
|
goto bad;
|
|
}
|
|
ufs_makedirentry(ip, tcnp, &newdir);
|
|
error = ufs_direnter(tdvp, NULL, &newdir, tcnp, NULL);
|
|
if (error) {
|
|
if (doingdirectory && newparent) {
|
|
dp->i_effnlink--;
|
|
dp->i_nlink--;
|
|
DIP_SET(dp, i_nlink, dp->i_nlink);
|
|
dp->i_flag |= IN_CHANGE;
|
|
if (DOINGSOFTDEP(tdvp))
|
|
softdep_change_linkcnt(dp);
|
|
(void)UFS_UPDATE(tdvp, 1);
|
|
}
|
|
goto bad;
|
|
}
|
|
vput(tdvp);
|
|
} else {
|
|
if (xp->i_dev != dp->i_dev || xp->i_dev != ip->i_dev)
|
|
panic("ufs_rename: EXDEV");
|
|
/*
|
|
* Short circuit rename(foo, foo).
|
|
*/
|
|
if (xp->i_number == ip->i_number)
|
|
panic("ufs_rename: same file");
|
|
/*
|
|
* If the parent directory is "sticky", then the caller
|
|
* must possess VADMIN for the parent directory, or the
|
|
* destination of the rename. This implements append-only
|
|
* directories.
|
|
*/
|
|
if ((dp->i_mode & S_ISTXT) &&
|
|
VOP_ACCESS(tdvp, VADMIN, tcnp->cn_cred, td) &&
|
|
VOP_ACCESS(tvp, VADMIN, tcnp->cn_cred, td)) {
|
|
error = EPERM;
|
|
goto bad;
|
|
}
|
|
/*
|
|
* Target must be empty if a directory and have no links
|
|
* to it. Also, ensure source and target are compatible
|
|
* (both directories, or both not directories).
|
|
*/
|
|
if ((xp->i_mode&IFMT) == IFDIR) {
|
|
if ((xp->i_effnlink > 2) ||
|
|
!ufs_dirempty(xp, dp->i_number, tcnp->cn_cred)) {
|
|
error = ENOTEMPTY;
|
|
goto bad;
|
|
}
|
|
if (!doingdirectory) {
|
|
error = ENOTDIR;
|
|
goto bad;
|
|
}
|
|
cache_purge(tdvp);
|
|
} else if (doingdirectory) {
|
|
error = EISDIR;
|
|
goto bad;
|
|
}
|
|
error = ufs_dirrewrite(dp, xp, ip->i_number,
|
|
IFTODT(ip->i_mode),
|
|
(doingdirectory && newparent) ? newparent : doingdirectory);
|
|
if (error)
|
|
goto bad;
|
|
if (doingdirectory) {
|
|
if (!newparent) {
|
|
dp->i_effnlink--;
|
|
if (DOINGSOFTDEP(tdvp))
|
|
softdep_change_linkcnt(dp);
|
|
}
|
|
xp->i_effnlink--;
|
|
if (DOINGSOFTDEP(tvp))
|
|
softdep_change_linkcnt(xp);
|
|
}
|
|
if (doingdirectory && !DOINGSOFTDEP(tvp)) {
|
|
/*
|
|
* Truncate inode. The only stuff left in the directory
|
|
* is "." and "..". The "." reference is inconsequential
|
|
* since we are quashing it. We have removed the "."
|
|
* reference and the reference in the parent directory,
|
|
* but there may be other hard links. The soft
|
|
* dependency code will arrange to do these operations
|
|
* after the parent directory entry has been deleted on
|
|
* disk, so when running with that code we avoid doing
|
|
* them now.
|
|
*/
|
|
if (!newparent) {
|
|
dp->i_nlink--;
|
|
DIP_SET(dp, i_nlink, dp->i_nlink);
|
|
dp->i_flag |= IN_CHANGE;
|
|
}
|
|
xp->i_nlink--;
|
|
DIP_SET(xp, i_nlink, xp->i_nlink);
|
|
xp->i_flag |= IN_CHANGE;
|
|
ioflag = IO_NORMAL;
|
|
if (!DOINGASYNC(tvp))
|
|
ioflag |= IO_SYNC;
|
|
if ((error = UFS_TRUNCATE(tvp, (off_t)0, ioflag,
|
|
tcnp->cn_cred, tcnp->cn_thread)) != 0)
|
|
goto bad;
|
|
}
|
|
vput(tdvp);
|
|
vput(tvp);
|
|
xp = NULL;
|
|
}
|
|
|
|
/*
|
|
* 3) Unlink the source.
|
|
*/
|
|
fcnp->cn_flags &= ~MODMASK;
|
|
fcnp->cn_flags |= LOCKPARENT | LOCKLEAF;
|
|
if ((fcnp->cn_flags & SAVESTART) == 0)
|
|
panic("ufs_rename: lost from startdir");
|
|
VREF(fdvp);
|
|
error = relookup(fdvp, &fvp, fcnp);
|
|
if (error == 0)
|
|
vrele(fdvp);
|
|
if (fvp != NULL) {
|
|
xp = VTOI(fvp);
|
|
dp = VTOI(fdvp);
|
|
} else {
|
|
/*
|
|
* From name has disappeared. IN_RENAME is not sufficient
|
|
* to protect against directory races due to timing windows,
|
|
* so we have to remove the panic. XXX the only real way
|
|
* to solve this issue is at a much higher level. By the
|
|
* time we hit ufs_rename() it's too late.
|
|
*/
|
|
#if 0
|
|
if (doingdirectory)
|
|
panic("ufs_rename: lost dir entry");
|
|
#endif
|
|
vrele(ap->a_fvp);
|
|
return (0);
|
|
}
|
|
/*
|
|
* Ensure that the directory entry still exists and has not
|
|
* changed while the new name has been entered. If the source is
|
|
* a file then the entry may have been unlinked or renamed. In
|
|
* either case there is no further work to be done. If the source
|
|
* is a directory then it cannot have been rmdir'ed; the IN_RENAME
|
|
* flag ensures that it cannot be moved by another rename or removed
|
|
* by a rmdir.
|
|
*/
|
|
if (xp != ip) {
|
|
/*
|
|
* From name resolves to a different inode. IN_RENAME is
|
|
* not sufficient protection against timing window races
|
|
* so we can't panic here. XXX the only real way
|
|
* to solve this issue is at a much higher level. By the
|
|
* time we hit ufs_rename() it's too late.
|
|
*/
|
|
#if 0
|
|
if (doingdirectory)
|
|
panic("ufs_rename: lost dir entry");
|
|
#endif
|
|
} else {
|
|
/*
|
|
* If the source is a directory with a
|
|
* new parent, the link count of the old
|
|
* parent directory must be decremented
|
|
* and ".." set to point to the new parent.
|
|
*/
|
|
if (doingdirectory && newparent) {
|
|
xp->i_offset = mastertemplate.dot_reclen;
|
|
ufs_dirrewrite(xp, dp, newparent, DT_DIR, 0);
|
|
cache_purge(fdvp);
|
|
}
|
|
error = ufs_dirremove(fdvp, xp, fcnp->cn_flags, 0);
|
|
xp->i_flag &= ~IN_RENAME;
|
|
}
|
|
if (dp)
|
|
vput(fdvp);
|
|
if (xp)
|
|
vput(fvp);
|
|
vrele(ap->a_fvp);
|
|
return (error);
|
|
|
|
bad:
|
|
if (xp)
|
|
vput(ITOV(xp));
|
|
vput(ITOV(dp));
|
|
out:
|
|
if (doingdirectory)
|
|
ip->i_flag &= ~IN_RENAME;
|
|
if (vn_lock(fvp, LK_EXCLUSIVE) == 0) {
|
|
ip->i_effnlink--;
|
|
ip->i_nlink--;
|
|
DIP_SET(ip, i_nlink, ip->i_nlink);
|
|
ip->i_flag |= IN_CHANGE;
|
|
ip->i_flag &= ~IN_RENAME;
|
|
if (DOINGSOFTDEP(fvp))
|
|
softdep_change_linkcnt(ip);
|
|
vput(fvp);
|
|
} else
|
|
vrele(fvp);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Mkdir system call
|
|
*/
|
|
static int
|
|
ufs_mkdir(ap)
|
|
struct vop_mkdir_args /* {
|
|
struct vnode *a_dvp;
|
|
struct vnode **a_vpp;
|
|
struct componentname *a_cnp;
|
|
struct vattr *a_vap;
|
|
} */ *ap;
|
|
{
|
|
struct vnode *dvp = ap->a_dvp;
|
|
struct vattr *vap = ap->a_vap;
|
|
struct componentname *cnp = ap->a_cnp;
|
|
struct inode *ip, *dp;
|
|
struct vnode *tvp;
|
|
struct buf *bp;
|
|
struct dirtemplate dirtemplate, *dtp;
|
|
struct direct newdir;
|
|
#ifdef UFS_ACL
|
|
struct acl *acl, *dacl;
|
|
#endif
|
|
int error, dmode;
|
|
long blkoff;
|
|
|
|
#ifdef INVARIANTS
|
|
if ((cnp->cn_flags & HASBUF) == 0)
|
|
panic("ufs_mkdir: no name");
|
|
#endif
|
|
dp = VTOI(dvp);
|
|
if ((nlink_t)dp->i_nlink >= LINK_MAX) {
|
|
error = EMLINK;
|
|
goto out;
|
|
}
|
|
dmode = vap->va_mode & 0777;
|
|
dmode |= IFDIR;
|
|
/*
|
|
* Must simulate part of ufs_makeinode here to acquire the inode,
|
|
* but not have it entered in the parent directory. The entry is
|
|
* made later after writing "." and ".." entries.
|
|
*/
|
|
error = UFS_VALLOC(dvp, dmode, cnp->cn_cred, &tvp);
|
|
if (error)
|
|
goto out;
|
|
ip = VTOI(tvp);
|
|
ip->i_gid = dp->i_gid;
|
|
DIP_SET(ip, i_gid, dp->i_gid);
|
|
#ifdef SUIDDIR
|
|
{
|
|
#ifdef QUOTA
|
|
struct ucred ucred, *ucp;
|
|
ucp = cnp->cn_cred;
|
|
#endif
|
|
/*
|
|
* If we are hacking owners here, (only do this where told to)
|
|
* and we are not giving it TO root, (would subvert quotas)
|
|
* then go ahead and give it to the other user.
|
|
* The new directory also inherits the SUID bit.
|
|
* If user's UID and dir UID are the same,
|
|
* 'give it away' so that the SUID is still forced on.
|
|
*/
|
|
if ((dvp->v_mount->mnt_flag & MNT_SUIDDIR) &&
|
|
(dp->i_mode & ISUID) && dp->i_uid) {
|
|
dmode |= ISUID;
|
|
ip->i_uid = dp->i_uid;
|
|
DIP_SET(ip, i_uid, dp->i_uid);
|
|
#ifdef QUOTA
|
|
if (dp->i_uid != cnp->cn_cred->cr_uid) {
|
|
/*
|
|
* Make sure the correct user gets charged
|
|
* for the space.
|
|
* Make a dummy credential for the victim.
|
|
* XXX This seems to never be accessed out of
|
|
* our context so a stack variable is ok.
|
|
*/
|
|
refcount_init(&ucred.cr_ref, 1);
|
|
ucred.cr_uid = ip->i_uid;
|
|
ucred.cr_ngroups = 1;
|
|
ucred.cr_groups[0] = dp->i_gid;
|
|
ucp = &ucred;
|
|
}
|
|
#endif
|
|
} else {
|
|
ip->i_uid = cnp->cn_cred->cr_uid;
|
|
DIP_SET(ip, i_uid, ip->i_uid);
|
|
}
|
|
#ifdef QUOTA
|
|
if ((error = getinoquota(ip)) ||
|
|
(error = chkiq(ip, 1, ucp, 0))) {
|
|
UFS_VFREE(tvp, ip->i_number, dmode);
|
|
vput(tvp);
|
|
return (error);
|
|
}
|
|
#endif
|
|
}
|
|
#else /* !SUIDDIR */
|
|
ip->i_uid = cnp->cn_cred->cr_uid;
|
|
DIP_SET(ip, i_uid, ip->i_uid);
|
|
#ifdef QUOTA
|
|
if ((error = getinoquota(ip)) ||
|
|
(error = chkiq(ip, 1, cnp->cn_cred, 0))) {
|
|
UFS_VFREE(tvp, ip->i_number, dmode);
|
|
vput(tvp);
|
|
return (error);
|
|
}
|
|
#endif
|
|
#endif /* !SUIDDIR */
|
|
ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE;
|
|
#ifdef UFS_ACL
|
|
acl = dacl = NULL;
|
|
if ((dvp->v_mount->mnt_flag & MNT_ACLS) != 0) {
|
|
acl = uma_zalloc(acl_zone, M_WAITOK);
|
|
dacl = uma_zalloc(acl_zone, M_WAITOK);
|
|
|
|
/*
|
|
* Retrieve default ACL from parent, if any.
|
|
*/
|
|
error = VOP_GETACL(dvp, ACL_TYPE_DEFAULT, acl, cnp->cn_cred,
|
|
cnp->cn_thread);
|
|
switch (error) {
|
|
case 0:
|
|
/*
|
|
* Retrieved a default ACL, so merge mode and ACL if
|
|
* necessary. If the ACL is empty, fall through to
|
|
* the "not defined or available" case.
|
|
*/
|
|
if (acl->acl_cnt != 0) {
|
|
dmode = acl_posix1e_newfilemode(dmode, acl);
|
|
ip->i_mode = dmode;
|
|
DIP_SET(ip, i_mode, dmode);
|
|
*dacl = *acl;
|
|
ufs_sync_acl_from_inode(ip, acl);
|
|
break;
|
|
}
|
|
/* FALLTHROUGH */
|
|
|
|
case EOPNOTSUPP:
|
|
/*
|
|
* Just use the mode as-is.
|
|
*/
|
|
ip->i_mode = dmode;
|
|
DIP_SET(ip, i_mode, dmode);
|
|
uma_zfree(acl_zone, acl);
|
|
uma_zfree(acl_zone, dacl);
|
|
dacl = acl = NULL;
|
|
break;
|
|
|
|
default:
|
|
UFS_VFREE(tvp, ip->i_number, dmode);
|
|
vput(tvp);
|
|
uma_zfree(acl_zone, acl);
|
|
uma_zfree(acl_zone, dacl);
|
|
return (error);
|
|
}
|
|
} else {
|
|
#endif /* !UFS_ACL */
|
|
ip->i_mode = dmode;
|
|
DIP_SET(ip, i_mode, dmode);
|
|
#ifdef UFS_ACL
|
|
}
|
|
#endif
|
|
tvp->v_type = VDIR; /* Rest init'd in getnewvnode(). */
|
|
ip->i_effnlink = 2;
|
|
ip->i_nlink = 2;
|
|
DIP_SET(ip, i_nlink, 2);
|
|
if (DOINGSOFTDEP(tvp))
|
|
softdep_change_linkcnt(ip);
|
|
if (cnp->cn_flags & ISWHITEOUT) {
|
|
ip->i_flags |= UF_OPAQUE;
|
|
DIP_SET(ip, i_flags, ip->i_flags);
|
|
}
|
|
|
|
/*
|
|
* Bump link count in parent directory to reflect work done below.
|
|
* Should be done before reference is created so cleanup is
|
|
* possible if we crash.
|
|
*/
|
|
dp->i_effnlink++;
|
|
dp->i_nlink++;
|
|
DIP_SET(dp, i_nlink, dp->i_nlink);
|
|
dp->i_flag |= IN_CHANGE;
|
|
if (DOINGSOFTDEP(dvp))
|
|
softdep_change_linkcnt(dp);
|
|
error = UFS_UPDATE(tvp, !(DOINGSOFTDEP(dvp) | DOINGASYNC(dvp)));
|
|
if (error)
|
|
goto bad;
|
|
#ifdef MAC
|
|
if (dvp->v_mount->mnt_flag & MNT_MULTILABEL) {
|
|
error = mac_vnode_create_extattr(cnp->cn_cred, dvp->v_mount,
|
|
dvp, tvp, cnp);
|
|
if (error)
|
|
goto bad;
|
|
}
|
|
#endif
|
|
#ifdef UFS_ACL
|
|
if (acl != NULL) {
|
|
/*
|
|
* XXX: If we abort now, will Soft Updates notify the extattr
|
|
* code that the EAs for the file need to be released?
|
|
*/
|
|
error = VOP_SETACL(tvp, ACL_TYPE_ACCESS, acl, cnp->cn_cred,
|
|
cnp->cn_thread);
|
|
if (error == 0)
|
|
error = VOP_SETACL(tvp, ACL_TYPE_DEFAULT, dacl,
|
|
cnp->cn_cred, cnp->cn_thread);
|
|
switch (error) {
|
|
case 0:
|
|
break;
|
|
|
|
case EOPNOTSUPP:
|
|
/*
|
|
* XXX: This should not happen, as EOPNOTSUPP above
|
|
* was supposed to free acl.
|
|
*/
|
|
printf("ufs_mkdir: VOP_GETACL() but no VOP_SETACL()\n");
|
|
/*
|
|
panic("ufs_mkdir: VOP_GETACL() but no VOP_SETACL()");
|
|
*/
|
|
break;
|
|
|
|
default:
|
|
uma_zfree(acl_zone, acl);
|
|
uma_zfree(acl_zone, dacl);
|
|
dacl = acl = NULL;
|
|
goto bad;
|
|
}
|
|
uma_zfree(acl_zone, acl);
|
|
uma_zfree(acl_zone, dacl);
|
|
dacl = acl = NULL;
|
|
}
|
|
#endif /* !UFS_ACL */
|
|
|
|
/*
|
|
* Initialize directory with "." and ".." from static template.
|
|
*/
|
|
if (dvp->v_mount->mnt_maxsymlinklen > 0)
|
|
dtp = &mastertemplate;
|
|
else
|
|
dtp = (struct dirtemplate *)&omastertemplate;
|
|
dirtemplate = *dtp;
|
|
dirtemplate.dot_ino = ip->i_number;
|
|
dirtemplate.dotdot_ino = dp->i_number;
|
|
if ((error = UFS_BALLOC(tvp, (off_t)0, DIRBLKSIZ, cnp->cn_cred,
|
|
BA_CLRBUF, &bp)) != 0)
|
|
goto bad;
|
|
ip->i_size = DIRBLKSIZ;
|
|
DIP_SET(ip, i_size, DIRBLKSIZ);
|
|
ip->i_flag |= IN_CHANGE | IN_UPDATE;
|
|
vnode_pager_setsize(tvp, (u_long)ip->i_size);
|
|
bcopy((caddr_t)&dirtemplate, (caddr_t)bp->b_data, sizeof dirtemplate);
|
|
if (DOINGSOFTDEP(tvp)) {
|
|
/*
|
|
* Ensure that the entire newly allocated block is a
|
|
* valid directory so that future growth within the
|
|
* block does not have to ensure that the block is
|
|
* written before the inode.
|
|
*/
|
|
blkoff = DIRBLKSIZ;
|
|
while (blkoff < bp->b_bcount) {
|
|
((struct direct *)
|
|
(bp->b_data + blkoff))->d_reclen = DIRBLKSIZ;
|
|
blkoff += DIRBLKSIZ;
|
|
}
|
|
}
|
|
if ((error = UFS_UPDATE(tvp, !(DOINGSOFTDEP(tvp) |
|
|
DOINGASYNC(tvp)))) != 0) {
|
|
(void)bwrite(bp);
|
|
goto bad;
|
|
}
|
|
/*
|
|
* Directory set up, now install its entry in the parent directory.
|
|
*
|
|
* If we are not doing soft dependencies, then we must write out the
|
|
* buffer containing the new directory body before entering the new
|
|
* name in the parent. If we are doing soft dependencies, then the
|
|
* buffer containing the new directory body will be passed to and
|
|
* released in the soft dependency code after the code has attached
|
|
* an appropriate ordering dependency to the buffer which ensures that
|
|
* the buffer is written before the new name is written in the parent.
|
|
*/
|
|
if (DOINGASYNC(dvp))
|
|
bdwrite(bp);
|
|
else if (!DOINGSOFTDEP(dvp) && ((error = bwrite(bp))))
|
|
goto bad;
|
|
ufs_makedirentry(ip, cnp, &newdir);
|
|
error = ufs_direnter(dvp, tvp, &newdir, cnp, bp);
|
|
|
|
bad:
|
|
if (error == 0) {
|
|
*ap->a_vpp = tvp;
|
|
} else {
|
|
#ifdef UFS_ACL
|
|
if (acl != NULL)
|
|
uma_zfree(acl_zone, acl);
|
|
if (dacl != NULL)
|
|
uma_zfree(acl_zone, dacl);
|
|
#endif
|
|
dp->i_effnlink--;
|
|
dp->i_nlink--;
|
|
DIP_SET(dp, i_nlink, dp->i_nlink);
|
|
dp->i_flag |= IN_CHANGE;
|
|
if (DOINGSOFTDEP(dvp))
|
|
softdep_change_linkcnt(dp);
|
|
/*
|
|
* No need to do an explicit VOP_TRUNCATE here, vrele will
|
|
* do this for us because we set the link count to 0.
|
|
*/
|
|
ip->i_effnlink = 0;
|
|
ip->i_nlink = 0;
|
|
DIP_SET(ip, i_nlink, 0);
|
|
ip->i_flag |= IN_CHANGE;
|
|
if (DOINGSOFTDEP(tvp))
|
|
softdep_change_linkcnt(ip);
|
|
vput(tvp);
|
|
}
|
|
out:
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Rmdir system call.
|
|
*/
|
|
static int
|
|
ufs_rmdir(ap)
|
|
struct vop_rmdir_args /* {
|
|
struct vnode *a_dvp;
|
|
struct vnode *a_vp;
|
|
struct componentname *a_cnp;
|
|
} */ *ap;
|
|
{
|
|
struct vnode *vp = ap->a_vp;
|
|
struct vnode *dvp = ap->a_dvp;
|
|
struct componentname *cnp = ap->a_cnp;
|
|
struct inode *ip, *dp;
|
|
int error, ioflag;
|
|
|
|
ip = VTOI(vp);
|
|
dp = VTOI(dvp);
|
|
|
|
/*
|
|
* Do not remove a directory that is in the process of being renamed.
|
|
* Verify the directory is empty (and valid). Rmdir ".." will not be
|
|
* valid since ".." will contain a reference to the current directory
|
|
* and thus be non-empty. Do not allow the removal of mounted on
|
|
* directories (this can happen when an NFS exported filesystem
|
|
* tries to remove a locally mounted on directory).
|
|
*/
|
|
error = 0;
|
|
if ((ip->i_flag & IN_RENAME) || ip->i_effnlink < 2) {
|
|
error = EINVAL;
|
|
goto out;
|
|
}
|
|
if (!ufs_dirempty(ip, dp->i_number, cnp->cn_cred)) {
|
|
error = ENOTEMPTY;
|
|
goto out;
|
|
}
|
|
if ((dp->i_flags & APPEND)
|
|
|| (ip->i_flags & (NOUNLINK | IMMUTABLE | APPEND))) {
|
|
error = EPERM;
|
|
goto out;
|
|
}
|
|
if (vp->v_mountedhere != 0) {
|
|
error = EINVAL;
|
|
goto out;
|
|
}
|
|
#ifdef UFS_GJOURNAL
|
|
ufs_gjournal_orphan(vp);
|
|
#endif
|
|
/*
|
|
* Delete reference to directory before purging
|
|
* inode. If we crash in between, the directory
|
|
* will be reattached to lost+found,
|
|
*/
|
|
dp->i_effnlink--;
|
|
ip->i_effnlink--;
|
|
if (DOINGSOFTDEP(vp)) {
|
|
softdep_change_linkcnt(dp);
|
|
softdep_change_linkcnt(ip);
|
|
}
|
|
error = ufs_dirremove(dvp, ip, cnp->cn_flags, 1);
|
|
if (error) {
|
|
dp->i_effnlink++;
|
|
ip->i_effnlink++;
|
|
if (DOINGSOFTDEP(vp)) {
|
|
softdep_change_linkcnt(dp);
|
|
softdep_change_linkcnt(ip);
|
|
}
|
|
goto out;
|
|
}
|
|
cache_purge(dvp);
|
|
/*
|
|
* Truncate inode. The only stuff left in the directory is "." and
|
|
* "..". The "." reference is inconsequential since we are quashing
|
|
* it. The soft dependency code will arrange to do these operations
|
|
* after the parent directory entry has been deleted on disk, so
|
|
* when running with that code we avoid doing them now.
|
|
*/
|
|
if (!DOINGSOFTDEP(vp)) {
|
|
dp->i_nlink--;
|
|
DIP_SET(dp, i_nlink, dp->i_nlink);
|
|
dp->i_flag |= IN_CHANGE;
|
|
ip->i_nlink--;
|
|
DIP_SET(ip, i_nlink, ip->i_nlink);
|
|
ip->i_flag |= IN_CHANGE;
|
|
ioflag = IO_NORMAL;
|
|
if (!DOINGASYNC(vp))
|
|
ioflag |= IO_SYNC;
|
|
error = UFS_TRUNCATE(vp, (off_t)0, ioflag, cnp->cn_cred,
|
|
cnp->cn_thread);
|
|
}
|
|
cache_purge(vp);
|
|
#ifdef UFS_DIRHASH
|
|
/* Kill any active hash; i_effnlink == 0, so it will not come back. */
|
|
if (ip->i_dirhash != NULL)
|
|
ufsdirhash_free(ip);
|
|
#endif
|
|
out:
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* symlink -- make a symbolic link
|
|
*/
|
|
static int
|
|
ufs_symlink(ap)
|
|
struct vop_symlink_args /* {
|
|
struct vnode *a_dvp;
|
|
struct vnode **a_vpp;
|
|
struct componentname *a_cnp;
|
|
struct vattr *a_vap;
|
|
char *a_target;
|
|
} */ *ap;
|
|
{
|
|
struct vnode *vp, **vpp = ap->a_vpp;
|
|
struct inode *ip;
|
|
int len, error;
|
|
|
|
error = ufs_makeinode(IFLNK | ap->a_vap->va_mode, ap->a_dvp,
|
|
vpp, ap->a_cnp);
|
|
if (error)
|
|
return (error);
|
|
vp = *vpp;
|
|
len = strlen(ap->a_target);
|
|
if (len < vp->v_mount->mnt_maxsymlinklen) {
|
|
ip = VTOI(vp);
|
|
bcopy(ap->a_target, SHORTLINK(ip), len);
|
|
ip->i_size = len;
|
|
DIP_SET(ip, i_size, len);
|
|
ip->i_flag |= IN_CHANGE | IN_UPDATE;
|
|
} else
|
|
error = vn_rdwr(UIO_WRITE, vp, ap->a_target, len, (off_t)0,
|
|
UIO_SYSSPACE, IO_NODELOCKED | IO_NOMACCHECK,
|
|
ap->a_cnp->cn_cred, NOCRED, (int *)0, (struct thread *)0);
|
|
if (error)
|
|
vput(vp);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Vnode op for reading directories.
|
|
*
|
|
* The routine below assumes that the on-disk format of a directory
|
|
* is the same as that defined by <sys/dirent.h>. If the on-disk
|
|
* format changes, then it will be necessary to do a conversion
|
|
* from the on-disk format that read returns to the format defined
|
|
* by <sys/dirent.h>.
|
|
*/
|
|
int
|
|
ufs_readdir(ap)
|
|
struct vop_readdir_args /* {
|
|
struct vnode *a_vp;
|
|
struct uio *a_uio;
|
|
struct ucred *a_cred;
|
|
int *a_eofflag;
|
|
int *a_ncookies;
|
|
u_long **a_cookies;
|
|
} */ *ap;
|
|
{
|
|
struct uio *uio = ap->a_uio;
|
|
int error;
|
|
size_t count, lost;
|
|
off_t off;
|
|
|
|
if (ap->a_ncookies != NULL)
|
|
/*
|
|
* Ensure that the block is aligned. The caller can use
|
|
* the cookies to determine where in the block to start.
|
|
*/
|
|
uio->uio_offset &= ~(DIRBLKSIZ - 1);
|
|
off = uio->uio_offset;
|
|
count = uio->uio_resid;
|
|
/* Make sure we don't return partial entries. */
|
|
if (count <= ((uio->uio_offset + count) & (DIRBLKSIZ -1)))
|
|
return (EINVAL);
|
|
count -= (uio->uio_offset + count) & (DIRBLKSIZ -1);
|
|
lost = uio->uio_resid - count;
|
|
uio->uio_resid = count;
|
|
uio->uio_iov->iov_len = count;
|
|
# if (BYTE_ORDER == LITTLE_ENDIAN)
|
|
if (ap->a_vp->v_mount->mnt_maxsymlinklen > 0) {
|
|
error = VOP_READ(ap->a_vp, uio, 0, ap->a_cred);
|
|
} else {
|
|
struct dirent *dp, *edp;
|
|
struct uio auio;
|
|
struct iovec aiov;
|
|
caddr_t dirbuf;
|
|
int readcnt;
|
|
u_char tmp;
|
|
|
|
auio = *uio;
|
|
auio.uio_iov = &aiov;
|
|
auio.uio_iovcnt = 1;
|
|
auio.uio_segflg = UIO_SYSSPACE;
|
|
aiov.iov_len = count;
|
|
MALLOC(dirbuf, caddr_t, count, M_TEMP, M_WAITOK);
|
|
aiov.iov_base = dirbuf;
|
|
error = VOP_READ(ap->a_vp, &auio, 0, ap->a_cred);
|
|
if (error == 0) {
|
|
readcnt = count - auio.uio_resid;
|
|
edp = (struct dirent *)&dirbuf[readcnt];
|
|
for (dp = (struct dirent *)dirbuf; dp < edp; ) {
|
|
tmp = dp->d_namlen;
|
|
dp->d_namlen = dp->d_type;
|
|
dp->d_type = tmp;
|
|
if (dp->d_reclen > 0) {
|
|
dp = (struct dirent *)
|
|
((char *)dp + dp->d_reclen);
|
|
} else {
|
|
error = EIO;
|
|
break;
|
|
}
|
|
}
|
|
if (dp >= edp)
|
|
error = uiomove(dirbuf, readcnt, uio);
|
|
}
|
|
FREE(dirbuf, M_TEMP);
|
|
}
|
|
# else
|
|
error = VOP_READ(ap->a_vp, uio, 0, ap->a_cred);
|
|
# endif
|
|
if (!error && ap->a_ncookies != NULL) {
|
|
struct dirent* dpStart;
|
|
struct dirent* dpEnd;
|
|
struct dirent* dp;
|
|
int ncookies;
|
|
u_long *cookies;
|
|
u_long *cookiep;
|
|
|
|
if (uio->uio_segflg != UIO_SYSSPACE || uio->uio_iovcnt != 1)
|
|
panic("ufs_readdir: unexpected uio from NFS server");
|
|
dpStart = (struct dirent *)
|
|
((char *)uio->uio_iov->iov_base - (uio->uio_offset - off));
|
|
dpEnd = (struct dirent *) uio->uio_iov->iov_base;
|
|
for (dp = dpStart, ncookies = 0;
|
|
dp < dpEnd;
|
|
dp = (struct dirent *)((caddr_t) dp + dp->d_reclen))
|
|
ncookies++;
|
|
MALLOC(cookies, u_long *, ncookies * sizeof(u_long), M_TEMP,
|
|
M_WAITOK);
|
|
for (dp = dpStart, cookiep = cookies;
|
|
dp < dpEnd;
|
|
dp = (struct dirent *)((caddr_t) dp + dp->d_reclen)) {
|
|
off += dp->d_reclen;
|
|
*cookiep++ = (u_long) off;
|
|
}
|
|
*ap->a_ncookies = ncookies;
|
|
*ap->a_cookies = cookies;
|
|
}
|
|
uio->uio_resid += lost;
|
|
if (ap->a_eofflag)
|
|
*ap->a_eofflag = VTOI(ap->a_vp)->i_size <= uio->uio_offset;
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Return target name of a symbolic link
|
|
*/
|
|
static int
|
|
ufs_readlink(ap)
|
|
struct vop_readlink_args /* {
|
|
struct vnode *a_vp;
|
|
struct uio *a_uio;
|
|
struct ucred *a_cred;
|
|
} */ *ap;
|
|
{
|
|
struct vnode *vp = ap->a_vp;
|
|
struct inode *ip = VTOI(vp);
|
|
doff_t isize;
|
|
|
|
isize = ip->i_size;
|
|
if ((isize < vp->v_mount->mnt_maxsymlinklen) ||
|
|
DIP(ip, i_blocks) == 0) { /* XXX - for old fastlink support */
|
|
return (uiomove(SHORTLINK(ip), isize, ap->a_uio));
|
|
}
|
|
return (VOP_READ(vp, ap->a_uio, 0, ap->a_cred));
|
|
}
|
|
|
|
/*
|
|
* Calculate the logical to physical mapping if not done already,
|
|
* then call the device strategy routine.
|
|
*
|
|
* In order to be able to swap to a file, the ufs_bmaparray() operation may not
|
|
* deadlock on memory. See ufs_bmap() for details.
|
|
*/
|
|
static int
|
|
ufs_strategy(ap)
|
|
struct vop_strategy_args /* {
|
|
struct vnode *a_vp;
|
|
struct buf *a_bp;
|
|
} */ *ap;
|
|
{
|
|
struct buf *bp = ap->a_bp;
|
|
struct vnode *vp = ap->a_vp;
|
|
struct bufobj *bo;
|
|
struct inode *ip;
|
|
ufs2_daddr_t blkno;
|
|
int error;
|
|
|
|
ip = VTOI(vp);
|
|
if (bp->b_blkno == bp->b_lblkno) {
|
|
error = ufs_bmaparray(vp, bp->b_lblkno, &blkno, bp, NULL, NULL);
|
|
bp->b_blkno = blkno;
|
|
if (error) {
|
|
bp->b_error = error;
|
|
bp->b_ioflags |= BIO_ERROR;
|
|
bufdone(bp);
|
|
return (error);
|
|
}
|
|
if ((long)bp->b_blkno == -1)
|
|
vfs_bio_clrbuf(bp);
|
|
}
|
|
if ((long)bp->b_blkno == -1) {
|
|
bufdone(bp);
|
|
return (0);
|
|
}
|
|
bp->b_iooffset = dbtob(bp->b_blkno);
|
|
bo = ip->i_umbufobj;
|
|
BO_STRATEGY(bo, bp);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Print out the contents of an inode.
|
|
*/
|
|
static int
|
|
ufs_print(ap)
|
|
struct vop_print_args /* {
|
|
struct vnode *a_vp;
|
|
} */ *ap;
|
|
{
|
|
struct vnode *vp = ap->a_vp;
|
|
struct inode *ip = VTOI(vp);
|
|
|
|
printf("\tino %lu, on dev %s", (u_long)ip->i_number,
|
|
devtoname(ip->i_dev));
|
|
if (vp->v_type == VFIFO)
|
|
fifo_printinfo(vp);
|
|
printf("\n");
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Close wrapper for fifos.
|
|
*
|
|
* Update the times on the inode then do device close.
|
|
*/
|
|
static int
|
|
ufsfifo_close(ap)
|
|
struct vop_close_args /* {
|
|
struct vnode *a_vp;
|
|
int a_fflag;
|
|
struct ucred *a_cred;
|
|
struct thread *a_td;
|
|
} */ *ap;
|
|
{
|
|
struct vnode *vp = ap->a_vp;
|
|
int usecount;
|
|
|
|
VI_LOCK(vp);
|
|
usecount = vp->v_usecount;
|
|
if (usecount > 1)
|
|
ufs_itimes_locked(vp);
|
|
VI_UNLOCK(vp);
|
|
return (fifo_specops.vop_close(ap));
|
|
}
|
|
|
|
/*
|
|
* Kqfilter wrapper for fifos.
|
|
*
|
|
* Fall through to ufs kqfilter routines if needed
|
|
*/
|
|
static int
|
|
ufsfifo_kqfilter(ap)
|
|
struct vop_kqfilter_args *ap;
|
|
{
|
|
int error;
|
|
|
|
error = fifo_specops.vop_kqfilter(ap);
|
|
if (error)
|
|
error = vfs_kqfilter(ap);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Return POSIX pathconf information applicable to ufs filesystems.
|
|
*/
|
|
static int
|
|
ufs_pathconf(ap)
|
|
struct vop_pathconf_args /* {
|
|
struct vnode *a_vp;
|
|
int a_name;
|
|
int *a_retval;
|
|
} */ *ap;
|
|
{
|
|
int error;
|
|
|
|
error = 0;
|
|
switch (ap->a_name) {
|
|
case _PC_LINK_MAX:
|
|
*ap->a_retval = LINK_MAX;
|
|
break;
|
|
case _PC_NAME_MAX:
|
|
*ap->a_retval = NAME_MAX;
|
|
break;
|
|
case _PC_PATH_MAX:
|
|
*ap->a_retval = PATH_MAX;
|
|
break;
|
|
case _PC_PIPE_BUF:
|
|
*ap->a_retval = PIPE_BUF;
|
|
break;
|
|
case _PC_CHOWN_RESTRICTED:
|
|
*ap->a_retval = 1;
|
|
break;
|
|
case _PC_NO_TRUNC:
|
|
*ap->a_retval = 1;
|
|
break;
|
|
case _PC_ACL_EXTENDED:
|
|
#ifdef UFS_ACL
|
|
if (ap->a_vp->v_mount->mnt_flag & MNT_ACLS)
|
|
*ap->a_retval = 1;
|
|
else
|
|
*ap->a_retval = 0;
|
|
#else
|
|
*ap->a_retval = 0;
|
|
#endif
|
|
break;
|
|
case _PC_ACL_PATH_MAX:
|
|
#ifdef UFS_ACL
|
|
if (ap->a_vp->v_mount->mnt_flag & MNT_ACLS)
|
|
*ap->a_retval = ACL_MAX_ENTRIES;
|
|
else
|
|
*ap->a_retval = 3;
|
|
#else
|
|
*ap->a_retval = 3;
|
|
#endif
|
|
break;
|
|
case _PC_MAC_PRESENT:
|
|
#ifdef MAC
|
|
if (ap->a_vp->v_mount->mnt_flag & MNT_MULTILABEL)
|
|
*ap->a_retval = 1;
|
|
else
|
|
*ap->a_retval = 0;
|
|
#else
|
|
*ap->a_retval = 0;
|
|
#endif
|
|
break;
|
|
case _PC_ASYNC_IO:
|
|
/* _PC_ASYNC_IO should have been handled by upper layers. */
|
|
KASSERT(0, ("_PC_ASYNC_IO should not get here"));
|
|
error = EINVAL;
|
|
break;
|
|
case _PC_PRIO_IO:
|
|
*ap->a_retval = 0;
|
|
break;
|
|
case _PC_SYNC_IO:
|
|
*ap->a_retval = 0;
|
|
break;
|
|
case _PC_ALLOC_SIZE_MIN:
|
|
*ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_bsize;
|
|
break;
|
|
case _PC_FILESIZEBITS:
|
|
*ap->a_retval = 64;
|
|
break;
|
|
case _PC_REC_INCR_XFER_SIZE:
|
|
*ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_iosize;
|
|
break;
|
|
case _PC_REC_MAX_XFER_SIZE:
|
|
*ap->a_retval = -1; /* means ``unlimited'' */
|
|
break;
|
|
case _PC_REC_MIN_XFER_SIZE:
|
|
*ap->a_retval = ap->a_vp->v_mount->mnt_stat.f_iosize;
|
|
break;
|
|
case _PC_REC_XFER_ALIGN:
|
|
*ap->a_retval = PAGE_SIZE;
|
|
break;
|
|
case _PC_SYMLINK_MAX:
|
|
*ap->a_retval = MAXPATHLEN;
|
|
break;
|
|
|
|
default:
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Initialize the vnode associated with a new inode, handle aliased
|
|
* vnodes.
|
|
*/
|
|
int
|
|
ufs_vinit(mntp, fifoops, vpp)
|
|
struct mount *mntp;
|
|
struct vop_vector *fifoops;
|
|
struct vnode **vpp;
|
|
{
|
|
struct inode *ip;
|
|
struct vnode *vp;
|
|
|
|
vp = *vpp;
|
|
ip = VTOI(vp);
|
|
vp->v_type = IFTOVT(ip->i_mode);
|
|
if (vp->v_type == VFIFO)
|
|
vp->v_op = fifoops;
|
|
ASSERT_VOP_LOCKED(vp, "ufs_vinit");
|
|
if (ip->i_number == ROOTINO)
|
|
vp->v_vflag |= VV_ROOT;
|
|
ip->i_modrev = init_va_filerev();
|
|
*vpp = vp;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Allocate a new inode.
|
|
* Vnode dvp must be locked.
|
|
*/
|
|
static int
|
|
ufs_makeinode(mode, dvp, vpp, cnp)
|
|
int mode;
|
|
struct vnode *dvp;
|
|
struct vnode **vpp;
|
|
struct componentname *cnp;
|
|
{
|
|
struct inode *ip, *pdir;
|
|
struct direct newdir;
|
|
struct vnode *tvp;
|
|
#ifdef UFS_ACL
|
|
struct acl *acl;
|
|
#endif
|
|
int error;
|
|
|
|
pdir = VTOI(dvp);
|
|
#ifdef INVARIANTS
|
|
if ((cnp->cn_flags & HASBUF) == 0)
|
|
panic("ufs_makeinode: no name");
|
|
#endif
|
|
*vpp = NULL;
|
|
if ((mode & IFMT) == 0)
|
|
mode |= IFREG;
|
|
|
|
error = UFS_VALLOC(dvp, mode, cnp->cn_cred, &tvp);
|
|
if (error)
|
|
return (error);
|
|
ip = VTOI(tvp);
|
|
ip->i_gid = pdir->i_gid;
|
|
DIP_SET(ip, i_gid, pdir->i_gid);
|
|
#ifdef SUIDDIR
|
|
{
|
|
#ifdef QUOTA
|
|
struct ucred ucred, *ucp;
|
|
ucp = cnp->cn_cred;
|
|
#endif
|
|
/*
|
|
* If we are not the owner of the directory,
|
|
* and we are hacking owners here, (only do this where told to)
|
|
* and we are not giving it TO root, (would subvert quotas)
|
|
* then go ahead and give it to the other user.
|
|
* Note that this drops off the execute bits for security.
|
|
*/
|
|
if ((dvp->v_mount->mnt_flag & MNT_SUIDDIR) &&
|
|
(pdir->i_mode & ISUID) &&
|
|
(pdir->i_uid != cnp->cn_cred->cr_uid) && pdir->i_uid) {
|
|
ip->i_uid = pdir->i_uid;
|
|
DIP_SET(ip, i_uid, ip->i_uid);
|
|
mode &= ~07111;
|
|
#ifdef QUOTA
|
|
/*
|
|
* Make sure the correct user gets charged
|
|
* for the space.
|
|
* Quickly knock up a dummy credential for the victim.
|
|
* XXX This seems to never be accessed out of our
|
|
* context so a stack variable is ok.
|
|
*/
|
|
refcount_init(&ucred.cr_ref, 1);
|
|
ucred.cr_uid = ip->i_uid;
|
|
ucred.cr_ngroups = 1;
|
|
ucred.cr_groups[0] = pdir->i_gid;
|
|
ucp = &ucred;
|
|
#endif
|
|
} else {
|
|
ip->i_uid = cnp->cn_cred->cr_uid;
|
|
DIP_SET(ip, i_uid, ip->i_uid);
|
|
}
|
|
|
|
#ifdef QUOTA
|
|
if ((error = getinoquota(ip)) ||
|
|
(error = chkiq(ip, 1, ucp, 0))) {
|
|
UFS_VFREE(tvp, ip->i_number, mode);
|
|
vput(tvp);
|
|
return (error);
|
|
}
|
|
#endif
|
|
}
|
|
#else /* !SUIDDIR */
|
|
ip->i_uid = cnp->cn_cred->cr_uid;
|
|
DIP_SET(ip, i_uid, ip->i_uid);
|
|
#ifdef QUOTA
|
|
if ((error = getinoquota(ip)) ||
|
|
(error = chkiq(ip, 1, cnp->cn_cred, 0))) {
|
|
UFS_VFREE(tvp, ip->i_number, mode);
|
|
vput(tvp);
|
|
return (error);
|
|
}
|
|
#endif
|
|
#endif /* !SUIDDIR */
|
|
ip->i_flag |= IN_ACCESS | IN_CHANGE | IN_UPDATE;
|
|
#ifdef UFS_ACL
|
|
acl = NULL;
|
|
if ((dvp->v_mount->mnt_flag & MNT_ACLS) != 0) {
|
|
acl = uma_zalloc(acl_zone, M_WAITOK);
|
|
|
|
/*
|
|
* Retrieve default ACL for parent, if any.
|
|
*/
|
|
error = VOP_GETACL(dvp, ACL_TYPE_DEFAULT, acl, cnp->cn_cred,
|
|
cnp->cn_thread);
|
|
switch (error) {
|
|
case 0:
|
|
/*
|
|
* Retrieved a default ACL, so merge mode and ACL if
|
|
* necessary.
|
|
*/
|
|
if (acl->acl_cnt != 0) {
|
|
/*
|
|
* Two possible ways for default ACL to not
|
|
* be present. First, the EA can be
|
|
* undefined, or second, the default ACL can
|
|
* be blank. If it's blank, fall through to
|
|
* the it's not defined case.
|
|
*/
|
|
mode = acl_posix1e_newfilemode(mode, acl);
|
|
ip->i_mode = mode;
|
|
DIP_SET(ip, i_mode, mode);
|
|
ufs_sync_acl_from_inode(ip, acl);
|
|
break;
|
|
}
|
|
/* FALLTHROUGH */
|
|
|
|
case EOPNOTSUPP:
|
|
/*
|
|
* Just use the mode as-is.
|
|
*/
|
|
ip->i_mode = mode;
|
|
DIP_SET(ip, i_mode, mode);
|
|
uma_zfree(acl_zone, acl);
|
|
acl = NULL;
|
|
break;
|
|
|
|
default:
|
|
UFS_VFREE(tvp, ip->i_number, mode);
|
|
vput(tvp);
|
|
uma_zfree(acl_zone, acl);
|
|
acl = NULL;
|
|
return (error);
|
|
}
|
|
} else {
|
|
#endif
|
|
ip->i_mode = mode;
|
|
DIP_SET(ip, i_mode, mode);
|
|
#ifdef UFS_ACL
|
|
}
|
|
#endif
|
|
tvp->v_type = IFTOVT(mode); /* Rest init'd in getnewvnode(). */
|
|
ip->i_effnlink = 1;
|
|
ip->i_nlink = 1;
|
|
DIP_SET(ip, i_nlink, 1);
|
|
if (DOINGSOFTDEP(tvp))
|
|
softdep_change_linkcnt(ip);
|
|
if ((ip->i_mode & ISGID) && !groupmember(ip->i_gid, cnp->cn_cred) &&
|
|
priv_check_cred(cnp->cn_cred, PRIV_VFS_SETGID, 0)) {
|
|
ip->i_mode &= ~ISGID;
|
|
DIP_SET(ip, i_mode, ip->i_mode);
|
|
}
|
|
|
|
if (cnp->cn_flags & ISWHITEOUT) {
|
|
ip->i_flags |= UF_OPAQUE;
|
|
DIP_SET(ip, i_flags, ip->i_flags);
|
|
}
|
|
|
|
/*
|
|
* Make sure inode goes to disk before directory entry.
|
|
*/
|
|
error = UFS_UPDATE(tvp, !(DOINGSOFTDEP(tvp) | DOINGASYNC(tvp)));
|
|
if (error)
|
|
goto bad;
|
|
#ifdef MAC
|
|
if (dvp->v_mount->mnt_flag & MNT_MULTILABEL) {
|
|
error = mac_vnode_create_extattr(cnp->cn_cred, dvp->v_mount,
|
|
dvp, tvp, cnp);
|
|
if (error)
|
|
goto bad;
|
|
}
|
|
#endif
|
|
#ifdef UFS_ACL
|
|
if (acl != NULL) {
|
|
/*
|
|
* XXX: If we abort now, will Soft Updates notify the extattr
|
|
* code that the EAs for the file need to be released?
|
|
*/
|
|
error = VOP_SETACL(tvp, ACL_TYPE_ACCESS, acl, cnp->cn_cred,
|
|
cnp->cn_thread);
|
|
switch (error) {
|
|
case 0:
|
|
break;
|
|
|
|
case EOPNOTSUPP:
|
|
/*
|
|
* XXX: This should not happen, as EOPNOTSUPP above was
|
|
* supposed to free acl.
|
|
*/
|
|
printf("ufs_makeinode: VOP_GETACL() but no "
|
|
"VOP_SETACL()\n");
|
|
/* panic("ufs_makeinode: VOP_GETACL() but no "
|
|
"VOP_SETACL()"); */
|
|
break;
|
|
|
|
default:
|
|
uma_zfree(acl_zone, acl);
|
|
goto bad;
|
|
}
|
|
uma_zfree(acl_zone, acl);
|
|
}
|
|
#endif /* !UFS_ACL */
|
|
ufs_makedirentry(ip, cnp, &newdir);
|
|
error = ufs_direnter(dvp, tvp, &newdir, cnp, NULL);
|
|
if (error)
|
|
goto bad;
|
|
*vpp = tvp;
|
|
return (0);
|
|
|
|
bad:
|
|
/*
|
|
* Write error occurred trying to update the inode
|
|
* or the directory so must deallocate the inode.
|
|
*/
|
|
ip->i_effnlink = 0;
|
|
ip->i_nlink = 0;
|
|
DIP_SET(ip, i_nlink, 0);
|
|
ip->i_flag |= IN_CHANGE;
|
|
if (DOINGSOFTDEP(tvp))
|
|
softdep_change_linkcnt(ip);
|
|
vput(tvp);
|
|
return (error);
|
|
}
|
|
|
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/* Global vfs data structures for ufs. */
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|
struct vop_vector ufs_vnodeops = {
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.vop_default = &default_vnodeops,
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.vop_fsync = VOP_PANIC,
|
|
.vop_read = VOP_PANIC,
|
|
.vop_reallocblks = VOP_PANIC,
|
|
.vop_write = VOP_PANIC,
|
|
.vop_access = ufs_access,
|
|
.vop_bmap = ufs_bmap,
|
|
.vop_cachedlookup = ufs_lookup,
|
|
.vop_close = ufs_close,
|
|
.vop_create = ufs_create,
|
|
.vop_getattr = ufs_getattr,
|
|
.vop_inactive = ufs_inactive,
|
|
.vop_link = ufs_link,
|
|
.vop_lookup = vfs_cache_lookup,
|
|
.vop_mkdir = ufs_mkdir,
|
|
.vop_mknod = ufs_mknod,
|
|
.vop_open = ufs_open,
|
|
.vop_pathconf = ufs_pathconf,
|
|
.vop_poll = vop_stdpoll,
|
|
.vop_print = ufs_print,
|
|
.vop_readdir = ufs_readdir,
|
|
.vop_readlink = ufs_readlink,
|
|
.vop_reclaim = ufs_reclaim,
|
|
.vop_remove = ufs_remove,
|
|
.vop_rename = ufs_rename,
|
|
.vop_rmdir = ufs_rmdir,
|
|
.vop_setattr = ufs_setattr,
|
|
#ifdef MAC
|
|
.vop_setlabel = vop_stdsetlabel_ea,
|
|
#endif
|
|
.vop_strategy = ufs_strategy,
|
|
.vop_symlink = ufs_symlink,
|
|
.vop_whiteout = ufs_whiteout,
|
|
#ifdef UFS_EXTATTR
|
|
.vop_getextattr = ufs_getextattr,
|
|
.vop_deleteextattr = ufs_deleteextattr,
|
|
.vop_setextattr = ufs_setextattr,
|
|
#endif
|
|
#ifdef UFS_ACL
|
|
.vop_getacl = ufs_getacl,
|
|
.vop_setacl = ufs_setacl,
|
|
.vop_aclcheck = ufs_aclcheck,
|
|
#endif
|
|
};
|
|
|
|
struct vop_vector ufs_fifoops = {
|
|
.vop_default = &fifo_specops,
|
|
.vop_fsync = VOP_PANIC,
|
|
.vop_access = ufs_access,
|
|
.vop_close = ufsfifo_close,
|
|
.vop_getattr = ufs_getattr,
|
|
.vop_inactive = ufs_inactive,
|
|
.vop_kqfilter = ufsfifo_kqfilter,
|
|
.vop_print = ufs_print,
|
|
.vop_read = VOP_PANIC,
|
|
.vop_reclaim = ufs_reclaim,
|
|
.vop_setattr = ufs_setattr,
|
|
#ifdef MAC
|
|
.vop_setlabel = vop_stdsetlabel_ea,
|
|
#endif
|
|
.vop_write = VOP_PANIC,
|
|
#ifdef UFS_EXTATTR
|
|
.vop_getextattr = ufs_getextattr,
|
|
.vop_deleteextattr = ufs_deleteextattr,
|
|
.vop_setextattr = ufs_setextattr,
|
|
#endif
|
|
#ifdef UFS_ACL
|
|
.vop_getacl = ufs_getacl,
|
|
.vop_setacl = ufs_setacl,
|
|
.vop_aclcheck = ufs_aclcheck,
|
|
#endif
|
|
};
|