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_xfs.c
37 *
38 */
39
40/*
41 * Irix UN*X file system: XFS (Extended 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 *xfs_match(am_opts *fo);
52static int xfs_mount(am_node *am, mntfs *mf);
53static int xfs_umount(am_node *am, mntfs *mf);
54
55/*
56 * Ops structure
57 */
58am_ops xfs_ops =
59{
60  "xfs",
61  xfs_match,
62  0,				/* xfs_init */
63  xfs_mount,
64  xfs_umount,
65  amfs_error_lookup_child,
66  amfs_error_mount_child,
67  amfs_error_readdir,
68  0,				/* xfs_readlink */
69  0,				/* xfs_mounted */
70  0,				/* xfs_umounted */
71  amfs_generic_find_srvr,
72  0,				/* xfs_get_wchan */
73  FS_MKMNT | FS_NOTIMEOUT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */
74#ifdef HAVE_FS_AUTOFS
75  AUTOFS_XFS_FS_FLAGS,
76#endif /* HAVE_FS_AUTOFS */
77};
78
79
80/*
81 * XFS needs local filesystem and device.
82 */
83static char *
84xfs_match(am_opts *fo)
85{
86
87  if (!fo->opt_dev) {
88    plog(XLOG_USER, "xfs: no device specified");
89    return 0;
90  }
91
92  dlog("XFS: 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_xfs(char *mntdir, char *fs_name, char *opts, int on_autofs)
103{
104  xfs_args_t xfs_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_XFS;
112
113  memset((voidp) &xfs_args, 0, sizeof(xfs_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_XFS;
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_XFS_ARGS_T_FLAGS
131  xfs_args.flags = 0;		/* XXX: fix this to correct flags */
132#endif /* HAVE_XFS_ARGS_T_FLAGS */
133#ifdef HAVE_XFS_ARGS_T_FSPEC
134  xfs_args.fspec = fs_name;
135#endif /* HAVE_XFS_ARGS_T_FSPEC */
136
137  /*
138   * Call generic mount routine
139   */
140  return mount_fs(&mnt, flags, (caddr_t) &xfs_args, 0, type, 0, NULL, mnttab_file_name, on_autofs);
141}
142
143
144static int
145xfs_mount(am_node *am, mntfs *mf)
146{
147  int on_autofs = mf->mf_flags & MFF_ON_AUTOFS;
148  int error;
149
150  error = mount_xfs(mf->mf_mount, mf->mf_info, mf->mf_mopts, on_autofs);
151  if (error) {
152    errno = error;
153    plog(XLOG_ERROR, "mount_xfs: %m");
154    return error;
155  }
156
157  return 0;
158}
159
160
161static int
162xfs_umount(am_node *am, mntfs *mf)
163{
164  int unmount_flags = (mf->mf_flags & MFF_ON_AUTOFS) ? AMU_UMOUNT_AUTOFS : 0;
165
166  return UMOUNT_FS(mf->mf_mount, mnttab_file_name, unmount_flags);
167}
168