1/*	$NetBSD$	*/
2
3/*
4 * Copyright (c) 1997-2009 Erez Zadok
5 * Copyright (c) 1989 Jan-Simon Pendry
6 * Copyright (c) 1989 Imperial College of Science, Technology & Medicine
7 * Copyright (c) 1989 The Regents of the University of California.
8 * All rights reserved.
9 *
10 * This code is derived from software contributed to Berkeley by
11 * Jan-Simon Pendry at Imperial College, London.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 *    notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 *    notice, this list of conditions and the following disclaimer in the
20 *    documentation and/or other materials provided with the distribution.
21 * 3. All advertising materials mentioning features or use of this software
22 *    must display the following acknowledgment:
23 *      This product includes software developed by the University of
24 *      California, Berkeley and its contributors.
25 * 4. Neither the name of the University nor the names of its contributors
26 *    may be used to endorse or promote products derived from this software
27 *    without specific prior written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 * SUCH DAMAGE.
40 *
41 *
42 * File: am-utils/amd/amfs_error.c
43 *
44 */
45
46/*
47 * Error file system.
48 * This is used as a last resort catchall if
49 * nothing else worked.  EFS just returns lots
50 * of error codes, except for unmount which
51 * always works of course.
52 */
53
54#ifdef HAVE_CONFIG_H
55# include <config.h>
56#endif /* HAVE_CONFIG_H */
57#include <am_defs.h>
58#include <amd.h>
59
60static char *amfs_error_match(am_opts *fo);
61static int amfs_error_mount(am_node *am, mntfs *mf);
62static int amfs_error_umount(am_node *am, mntfs *mf);
63
64
65/*
66 * Ops structure
67 */
68am_ops amfs_error_ops =
69{
70  "error",
71  amfs_error_match,
72  0,				/* amfs_error_init */
73  amfs_error_mount,
74  amfs_error_umount,
75  amfs_error_lookup_child,
76  amfs_error_mount_child,
77  amfs_error_readdir,
78  0,				/* amfs_error_readlink */
79  0,				/* amfs_error_mounted */
80  0,				/* amfs_error_umounted */
81  amfs_generic_find_srvr,
82  0,				/* amfs_error_get_wchan */
83  FS_DISCARD,			/* nfs_fs_flags */
84#ifdef HAVE_FS_AUTOFS
85  AUTOFS_ERROR_FS_FLAGS,
86#endif /* HAVE_FS_AUTOFS */
87};
88
89
90
91/*
92 * EFS file system always matches
93 */
94static char *
95amfs_error_match(am_opts *fo)
96{
97  return strdup("(error-hook)");
98}
99
100
101static int
102amfs_error_mount(am_node *am, mntfs *mf)
103{
104  return ENOENT;
105}
106
107
108static int
109amfs_error_umount(am_node *am, mntfs *mf)
110{
111  /*
112   * Always succeed
113   */
114  return 0;
115}
116
117
118/*
119 * EFS interface to RPC lookup() routine.
120 * Should never get here in the automounter.
121 * If we do then just give an error.
122 */
123am_node *
124amfs_error_lookup_child(am_node *mp, char *fname, int *error_return, int op)
125{
126  *error_return = ESTALE;
127  return 0;
128}
129
130
131/*
132 * EFS interface to RPC lookup() routine.
133 * Should never get here in the automounter.
134 * If we do then just give an error.
135 */
136am_node *
137amfs_error_mount_child(am_node *ap, int *error_return)
138{
139  *error_return = ESTALE;
140  return 0;
141}
142
143
144/*
145 * EFS interface to RPC readdir() routine.
146 * Should never get here in the automounter.
147 * If we do then just give an error.
148 */
149int
150amfs_error_readdir(am_node *mp, nfscookie cookie, nfsdirlist *dp, nfsentry *ep, u_int count)
151{
152  return ESTALE;
153}
154