1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright (c) 1988, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright 2017, Joyent, Inc.
25 * Copyright 2017 Nexenta Systems, Inc.  All rights reserved.
26 * Copyright (c) 2011, 2017 by Delphix. All rights reserved.
27 */
28
29/*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
30/*	  All Rights Reserved	*/
31
32/*
33 * University Copyright- Copyright (c) 1982, 1986, 1988
34 * The Regents of the University of California
35 * All Rights Reserved
36 *
37 * University Acknowledgment- Portions of this document are derived from
38 * software developed by the University of California, Berkeley, and its
39 * contributors.
40 */
41
42/*
43 * Portions of code from both of:
44 *	syscall/rename.c
45 *	fs/vnode.c
46 * heavily modified for this use.
47 */
48
49#include <sys/types.h>
50#include <sys/param.h>
51#include <sys/t_lock.h>
52#include <sys/errno.h>
53#include <sys/cred.h>
54#include <sys/user.h>
55#include <sys/uio.h>
56#include <sys/file.h>
57#include <sys/pathname.h>
58#include <sys/vfs.h>
59#include <sys/vfs_opreg.h>
60#include <sys/vnode.h>
61#include <sys/rwstlock.h>
62#include <sys/fem.h>
63#include <sys/stat.h>
64#include <sys/mode.h>
65#include <sys/conf.h>
66#include <sys/sysmacros.h>
67#include <sys/cmn_err.h>
68#include <sys/systm.h>
69#include <sys/kmem.h>
70#include <sys/debug.h>
71#include <sys/acl.h>
72#include <sys/nbmlock.h>
73#include <sys/fcntl.h>
74#include <fs/fs_subr.h>
75#include <sys/taskq.h>
76#include <fs/fs_reparse.h>
77#include <sys/time.h>
78
79#include <libfksmbfs.h>
80
81int
82fake_rename(char *frompath, char *topath)
83{
84	vnode_t *fdvp = NULL;
85	vnode_t *tdvp = NULL;
86	char *fname = NULL;
87	char *tname = NULL;
88	int error;
89
90	/*
91	 * Lookup to and from directories.
92	 */
93	if ((error = fake_lookup_dir(frompath, &fdvp, &fname)) != 0)
94		goto out;
95	if ((error = fake_lookup_dir(topath, &tdvp, &tname)) != 0)
96		goto out;
97
98	/*
99	 * Make sure both the from vnode directory and the to directory
100	 * are in the same vfs and the to directory is writable.
101	 */
102	if (fdvp != tdvp && fdvp->v_vfsp != tdvp->v_vfsp) {
103		error = EXDEV;
104		goto out;
105	}
106	if (tdvp->v_vfsp->vfs_flag & VFS_RDONLY) {
107		error = EROFS;
108		goto out;
109	}
110
111	/*
112	 * Do the rename.
113	 */
114	error = VOP_RENAME(fdvp, fname, tdvp, tname, CRED(), NULL, 0);
115
116out:
117	if (fdvp)
118		VN_RELE(fdvp);
119	if (tdvp)
120		VN_RELE(tdvp);
121
122	return (error);
123}
124