ops_xfs.c revision 119679 
1/*
2 * Copyright (c) 1997-2003 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 *      %W% (Berkeley) %G%
40 *
41 * $Id: ops_xfs.c,v 1.3.2.5 2002/12/27 22:44:43 ezk Exp $
42 *
43 */
44
45/*
46 * Irix UN*X file system: XFS (Extended File System)
47 */
48
49#ifdef HAVE_CONFIG_H
50# include <config.h>
51#endif /* HAVE_CONFIG_H */
52#include <am_defs.h>
53#include <amd.h>
54
55/* forward declarations */
56static char *xfs_match(am_opts *fo);
57static int xfs_fmount(mntfs *mf);
58static int xfs_fumount(mntfs *mf);
59
60/*
61 * Ops structure
62 */
63am_ops xfs_ops =
64{
65  "xfs",
66  xfs_match,
67  0,				/* xfs_init */
68  amfs_auto_fmount,
69  xfs_fmount,
70  amfs_auto_fumount,
71  xfs_fumount,
72  amfs_error_lookuppn,
73  amfs_error_readdir,
74  0,				/* xfs_readlink */
75  0,				/* xfs_mounted */
76  0,				/* xfs_umounted */
77  find_amfs_auto_srvr,
78  FS_MKMNT | FS_NOTIMEOUT | FS_UBACKGROUND | FS_AMQINFO
79};
80
81
82/*
83 * XFS needs local filesystem and device.
84 */
85static char *
86xfs_match(am_opts *fo)
87{
88
89  if (!fo->opt_dev) {
90    plog(XLOG_USER, "xfs: no device specified");
91    return 0;
92  }
93
94#ifdef DEBUG
95  dlog("XFS: mounting device \"%s\" on \"%s\"", fo->opt_dev, fo->opt_fs);
96#endif /* DEBUG */
97
98  /*
99   * Determine magic cookie to put in mtab
100   */
101  return strdup(fo->opt_dev);
102}
103
104
105static int
106mount_xfs(char *dir, char *fs_name, char *opts)
107{
108  xfs_args_t xfs_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_XFS;
116
117  memset((voidp) &xfs_args, 0, sizeof(xfs_args)); /* Paranoid */
118
119  /*
120   * Fill in the mount structure
121   */
122  memset((voidp) &mnt, 0, sizeof(mnt));
123  mnt.mnt_dir = dir;
124  mnt.mnt_fsname = fs_name;
125  mnt.mnt_type = MNTTAB_TYPE_XFS;
126  mnt.mnt_opts = opts;
127
128  flags = compute_mount_flags(&mnt);
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);
141}
142
143
144static int
145xfs_fmount(mntfs *mf)
146{
147  int error;
148
149  error = mount_xfs(mf->mf_mount, mf->mf_info, mf->mf_mopts);
150  if (error) {
151    errno = error;
152    plog(XLOG_ERROR, "mount_xfs: %m");
153    return error;
154  }
155
156  return 0;
157}
158
159
160static int
161xfs_fumount(mntfs *mf)
162{
163  return UMOUNT_FS(mf->mf_mount, mnttab_file_name);
164}
165