amfs_root.c revision 310490 
1/*
2 * Copyright (c) 1997-2014 Erez Zadok
3 * Copyright (c) 1990 Jan-Simon Pendry
4 * Copyright (c) 1990 Imperial College of Science, Technology & Medicine
5 * Copyright (c) 1990 The Regents of the University of California.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * Jan-Simon Pendry at Imperial College, London.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 *    may be used to endorse or promote products derived from this software
21 *    without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 *
36 * File: am-utils/amd/amfs_root.c
37 *
38 */
39
40/*
41 * Root file system
42 */
43
44#ifdef HAVE_CONFIG_H
45# include <config.h>
46#endif /* HAVE_CONFIG_H */
47#include <am_defs.h>
48#include <amd.h>
49
50/****************************************************************************
51 *** FORWARD DEFINITIONS                                                  ***
52 ****************************************************************************/
53static int amfs_root_mount(am_node *mp, mntfs *mf);
54
55/****************************************************************************
56 *** OPS STRUCTURES                                                       ***
57 ****************************************************************************/
58am_ops amfs_root_ops =
59{
60  "root",
61  0,				/* amfs_root_match */
62  0,				/* amfs_root_init */
63  amfs_root_mount,
64  amfs_generic_umount,
65  amfs_generic_lookup_child,
66  amfs_generic_mount_child,
67  amfs_generic_readdir,
68  0,				/* amfs_root_readlink */
69  0,				/* amfs_root_mounted */
70  0,				/* amfs_root_umounted */
71  amfs_generic_find_srvr,
72  0,				/* amfs_root_get_wchan */
73  FS_NOTIMEOUT | FS_AMQINFO | FS_DIRECTORY,	/* nfs_fs_flags */
74#ifdef HAVE_FS_AUTOFS
75  AUTOFS_ROOT_FS_FLAGS,
76#endif /* HAVE_FS_AUTOFS */
77};
78
79
80/****************************************************************************
81 *** FUNCTIONS                                                             ***
82 ****************************************************************************/
83
84/*
85 * Mount the root...
86 */
87static int
88amfs_root_mount(am_node *mp, mntfs *mf)
89{
90  mf->mf_mount = strealloc(mf->mf_mount, pid_fsname);
91  mf->mf_private = (opaque_t) mapc_find(mf->mf_info, "", NULL, NULL);
92  mf->mf_prfree = mapc_free;
93
94  return 0;
95}
96