1 /* $NetBSD: ops_efs.c,v 1.1.1.3 2015/01/17 16:34:15 christos Exp $ */
2
3 /*
4 * Copyright (c) 1997-2014 Erez Zadok
5 * Copyright (c) 1990 Jan-Simon Pendry
6 * Copyright (c) 1990 Imperial College of Science, Technology & Medicine
7 * Copyright (c) 1990 The Regents of the University of California.
8 * All rights reserved.
9 *
10 * This code is derived from software contributed to Berkeley by
11 * Jan-Simon Pendry at Imperial College, London.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. Neither the name of the University nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 *
37 *
38 * File: am-utils/amd/ops_efs.c
39 *
40 */
41
42 /*
43 * Irix UN*X file system: EFS (Extent File System)
44 */
45
46 #ifdef HAVE_CONFIG_H
47 # include <config.h>
48 #endif /* HAVE_CONFIG_H */
49 #include <am_defs.h>
50 #include <amd.h>
51
52 /* forward declarations */
53 static char *efs_match(am_opts *fo);
54 static int efs_mount(am_node *am, mntfs *mf);
55 static int efs_umount(am_node *am, mntfs *mf);
56
57 /*
58 * Ops structure
59 */
60 am_ops efs_ops =
61 {
62 "efs",
63 efs_match,
64 0, /* efs_init */
65 efs_mount,
66 efs_umount,
67 amfs_error_lookup_child,
68 amfs_error_mount_child,
69 amfs_error_readdir,
70 0, /* efs_readlink */
71 0, /* efs_mounted */
72 0, /* efs_umounted */
73 amfs_generic_find_srvr,
74 0, /* efs_get_wchan */
75 FS_MKMNT | FS_NOTIMEOUT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */
76 #ifdef HAVE_FS_AUTOFS
77 AUTOFS_EFS_FS_FLAGS,
78 #endif /* HAVE_FS_AUTOFS */
79 };
80
81
82 /*
83 * EFS needs local filesystem and device.
84 */
85 static char *
efs_match(am_opts * fo)86 efs_match(am_opts *fo)
87 {
88
89 if (!fo->opt_dev) {
90 plog(XLOG_USER, "efs: no device specified");
91 return 0;
92 }
93
94 dlog("EFS: mounting device \"%s\" on \"%s\"", fo->opt_dev, fo->opt_fs);
95
96 /*
97 * Determine magic cookie to put in mtab
98 */
99 return xstrdup(fo->opt_dev);
100 }
101
102
103 static int
mount_efs(char * mntdir,char * fs_name,char * opts,int on_autofs)104 mount_efs(char *mntdir, char *fs_name, char *opts, int on_autofs)
105 {
106 efs_args_t efs_args;
107 mntent_t mnt;
108 int flags;
109
110 /*
111 * Figure out the name of the file system type.
112 */
113 MTYPE_TYPE type = MOUNT_TYPE_EFS;
114
115 memset((voidp) &efs_args, 0, sizeof(efs_args)); /* Paranoid */
116
117 /*
118 * Fill in the mount structure
119 */
120 memset((voidp) &mnt, 0, sizeof(mnt));
121 mnt.mnt_dir = mntdir;
122 mnt.mnt_fsname = fs_name;
123 mnt.mnt_type = MNTTAB_TYPE_EFS;
124 mnt.mnt_opts = opts;
125
126 flags = compute_mount_flags(&mnt);
127 #ifdef HAVE_FS_AUTOFS
128 if (on_autofs)
129 flags |= autofs_compute_mount_flags(&mnt);
130 #endif /* HAVE_FS_AUTOFS */
131
132 #ifdef HAVE_EFS_ARGS_T_FLAGS
133 efs_args.flags = 0; /* XXX: fix this to correct flags */
134 #endif /* HAVE_EFS_ARGS_T_FLAGS */
135 #ifdef HAVE_EFS_ARGS_T_FSPEC
136 efs_args.fspec = fs_name;
137 #endif /* HAVE_EFS_ARGS_T_FSPEC */
138 #if defined(HAVE_EFS_ARGS_T_VERSION) && defined(EFS_MNT_VERSION)
139 efs_args.version = EFS_MNT_VERSION;
140 #endif /* HAVE_EFS_ARGS_T_VERSION && EFS_MNT_VERSION */
141
142 /*
143 * Call generic mount routine
144 */
145 return mount_fs(&mnt, flags, (caddr_t) &efs_args, 0, type, 0, NULL, mnttab_file_name, on_autofs);
146 }
147
148
149 static int
efs_mount(am_node * am,mntfs * mf)150 efs_mount(am_node *am, mntfs *mf)
151 {
152 int on_autofs = mf->mf_flags & MFF_ON_AUTOFS;
153 int error;
154
155 error = mount_efs(mf->mf_mount, mf->mf_info, mf->mf_mopts, on_autofs);
156 if (error) {
157 errno = error;
158 plog(XLOG_ERROR, "mount_efs: %m");
159 return error;
160 }
161
162 return 0;
163 }
164
165
166 static int
efs_umount(am_node * am,mntfs * mf)167 efs_umount(am_node *am, mntfs *mf)
168 {
169 int unmount_flags = (mf->mf_flags & MFF_ON_AUTOFS) ? AMU_UMOUNT_AUTOFS : 0;
170
171 return UMOUNT_FS(mf->mf_mount, mnttab_file_name, unmount_flags);
172 }
173
174