1/*
2 * Copyright (c) 1997-2006 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. All advertising materials mentioning features or use of this software
20 *    must display the following acknowledgment:
21 *      This product includes software developed by the University of
22 *      California, Berkeley and its contributors.
23 * 4. Neither the name of the University nor the names of its contributors
24 *    may be used to endorse or promote products derived from this software
25 *    without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * SUCH DAMAGE.
38 *
39 *
40 * File: am-utils/amd/ops_efs.c
41 *
42 */
43
44/*
45 * Irix UN*X file system: EFS (Extent File System)
46 */
47
48#ifdef HAVE_CONFIG_H
49# include <config.h>
50#endif /* HAVE_CONFIG_H */
51#include <am_defs.h>
52#include <amd.h>
53
54/* forward declarations */
55static char *efs_match(am_opts *fo);
56static int efs_mount(am_node *am, mntfs *mf);
57static int efs_umount(am_node *am, mntfs *mf);
58
59/*
60 * Ops structure
61 */
62am_ops efs_ops =
63{
64  "efs",
65  efs_match,
66  0,				/* efs_init */
67  efs_mount,
68  efs_umount,
69  amfs_error_lookup_child,
70  amfs_error_mount_child,
71  amfs_error_readdir,
72  0,				/* efs_readlink */
73  0,				/* efs_mounted */
74  0,				/* efs_umounted */
75  amfs_generic_find_srvr,
76  0,				/* efs_get_wchan */
77  FS_MKMNT | FS_NOTIMEOUT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */
78#ifdef HAVE_FS_AUTOFS
79  AUTOFS_EFS_FS_FLAGS,
80#endif /* HAVE_FS_AUTOFS */
81};
82
83
84/*
85 * EFS needs local filesystem and device.
86 */
87static char *
88efs_match(am_opts *fo)
89{
90
91  if (!fo->opt_dev) {
92    plog(XLOG_USER, "efs: no device specified");
93    return 0;
94  }
95
96  dlog("EFS: mounting device \"%s\" on \"%s\"", fo->opt_dev, fo->opt_fs);
97
98  /*
99   * Determine magic cookie to put in mtab
100   */
101  return strdup(fo->opt_dev);
102}
103
104
105static int
106mount_efs(char *mntdir, char *fs_name, char *opts, int on_autofs)
107{
108  efs_args_t efs_args;
109  mntent_t mnt;
110  int flags;
111
112  /*
113   * Figure out the name of the file system type.
114   */
115  MTYPE_TYPE type = MOUNT_TYPE_EFS;
116
117  memset((voidp) &efs_args, 0, sizeof(efs_args)); /* Paranoid */
118
119  /*
120   * Fill in the mount structure
121   */
122  memset((voidp) &mnt, 0, sizeof(mnt));
123  mnt.mnt_dir = mntdir;
124  mnt.mnt_fsname = fs_name;
125  mnt.mnt_type = MNTTAB_TYPE_EFS;
126  mnt.mnt_opts = opts;
127
128  flags = compute_mount_flags(&mnt);
129#ifdef HAVE_FS_AUTOFS
130  if (on_autofs)
131    flags |= autofs_compute_mount_flags(&mnt);
132#endif /* HAVE_FS_AUTOFS */
133
134#ifdef HAVE_EFS_ARGS_T_FLAGS
135  efs_args.flags = 0;		/* XXX: fix this to correct flags */
136#endif /* HAVE_EFS_ARGS_T_FLAGS */
137#ifdef HAVE_EFS_ARGS_T_FSPEC
138  efs_args.fspec = fs_name;
139#endif /* HAVE_EFS_ARGS_T_FSPEC */
140
141  /*
142   * Call generic mount routine
143   */
144  return mount_fs(&mnt, flags, (caddr_t) &efs_args, 0, type, 0, NULL, mnttab_file_name, on_autofs);
145}
146
147
148static int
149efs_mount(am_node *am, mntfs *mf)
150{
151  int on_autofs = mf->mf_flags & MFF_ON_AUTOFS;
152  int error;
153
154  error = mount_efs(mf->mf_mount, mf->mf_info, mf->mf_mopts, on_autofs);
155  if (error) {
156    errno = error;
157    plog(XLOG_ERROR, "mount_efs: %m");
158    return error;
159  }
160
161  return 0;
162}
163
164
165static int
166efs_umount(am_node *am, mntfs *mf)
167{
168  int unmount_flags = (mf->mf_flags & MFF_ON_AUTOFS) ? AMU_UMOUNT_AUTOFS : 0;
169
170  return UMOUNT_FS(mf->mf_mount, mnttab_file_name, unmount_flags);
171}
172
173