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 */
55 static char *efs_match(am_opts *fo);
56 static int efs_mount(am_node *am, mntfs *mf);
57 static int efs_umount(am_node *am, mntfs *mf);
58
59 /*
60 * Ops structure
61 */
62 am_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 */
87 static char *
efs_match(am_opts * fo)88 efs_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
105 static int
mount_efs(char * mntdir,char * fs_name,char * opts,int on_autofs)106 mount_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
148 static int
efs_mount(am_node * am,mntfs * mf)149 efs_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
165 static int
efs_umount(am_node * am,mntfs * mf)166 efs_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