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
81 int
fake_rename(char * frompath,char * topath)82 fake_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
116 out:
117 if (fdvp)
118 VN_RELE(fdvp);
119 if (tdvp)
120 VN_RELE(tdvp);
121
122 return (error);
123 }
124