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/ops_efs.c
37 *
38 */
39
40/*
41 * Irix UN*X file system: EFS (Extent 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/* forward declarations */
51static char *efs_match(am_opts *fo);
52static int efs_mount(am_node *am, mntfs *mf);
53static int efs_umount(am_node *am, mntfs *mf);
54
55/*
56 * Ops structure
57 */
58am_ops efs_ops =
59{
60  "efs",
61  efs_match,
62  0,				/* efs_init */
63  efs_mount,
64  efs_umount,
65  amfs_error_lookup_child,
66  amfs_error_mount_child,
67  amfs_error_readdir,
68  0,				/* efs_readlink */
69  0,				/* efs_mounted */
70  0,				/* efs_umounted */
71  amfs_generic_find_srvr,
72  0,				/* efs_get_wchan */
73  FS_MKMNT | FS_NOTIMEOUT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */
74#ifdef HAVE_FS_AUTOFS
75  AUTOFS_EFS_FS_FLAGS,
76#endif /* HAVE_FS_AUTOFS */
77};
78
79
80/*
81 * EFS needs local filesystem and device.
82 */
83static char *
84efs_match(am_opts *fo)
85{
86
87  if (!fo->opt_dev) {
88    plog(XLOG_USER, "efs: no device specified");
89    return 0;
90  }
91
92  dlog("EFS: mounting device \"%s\" on \"%s\"", fo->opt_dev, fo->opt_fs);
93
94  /*
95   * Determine magic cookie to put in mtab
96   */
97  return xstrdup(fo->opt_dev);
98}
99
100
101static int
102mount_efs(char *mntdir, char *fs_name, char *opts, int on_autofs)
103{
104  efs_args_t efs_args;
105  mntent_t mnt;
106  int flags;
107
108  /*
109   * Figure out the name of the file system type.
110   */
111  MTYPE_TYPE type = MOUNT_TYPE_EFS;
112
113  memset((voidp) &efs_args, 0, sizeof(efs_args)); /* Paranoid */
114
115  /*
116   * Fill in the mount structure
117   */
118  memset((voidp) &mnt, 0, sizeof(mnt));
119  mnt.mnt_dir = mntdir;
120  mnt.mnt_fsname = fs_name;
121  mnt.mnt_type = MNTTAB_TYPE_EFS;
122  mnt.mnt_opts = opts;
123
124  flags = compute_mount_flags(&mnt);
125#ifdef HAVE_FS_AUTOFS
126  if (on_autofs)
127    flags |= autofs_compute_mount_flags(&mnt);
128#endif /* HAVE_FS_AUTOFS */
129
130#ifdef HAVE_EFS_ARGS_T_FLAGS
131  efs_args.flags = 0;		/* XXX: fix this to correct flags */
132#endif /* HAVE_EFS_ARGS_T_FLAGS */
133#ifdef HAVE_EFS_ARGS_T_FSPEC
134  efs_args.fspec = fs_name;
135#endif /* HAVE_EFS_ARGS_T_FSPEC */
136#if defined(HAVE_EFS_ARGS_T_VERSION) && defined(EFS_MNT_VERSION)
137  efs_args.version = EFS_MNT_VERSION;
138#endif /* HAVE_EFS_ARGS_T_VERSION && EFS_MNT_VERSION */
139
140  /*
141   * Call generic mount routine
142   */
143  return mount_fs(&mnt, flags, (caddr_t) &efs_args, 0, type, 0, NULL, mnttab_file_name, on_autofs);
144}
145
146
147static int
148efs_mount(am_node *am, mntfs *mf)
149{
150  int on_autofs = mf->mf_flags & MFF_ON_AUTOFS;
151  int error;
152
153  error = mount_efs(mf->mf_mount, mf->mf_info, mf->mf_mopts, on_autofs);
154  if (error) {
155    errno = error;
156    plog(XLOG_ERROR, "mount_efs: %m");
157    return error;
158  }
159
160  return 0;
161}
162
163
164static int
165efs_umount(am_node *am, mntfs *mf)
166{
167  int unmount_flags = (mf->mf_flags & MFF_ON_AUTOFS) ? AMU_UMOUNT_AUTOFS : 0;
168
169  return UMOUNT_FS(mf->mf_mount, mnttab_file_name, unmount_flags);
170}
171
172