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 */
51 static char *efs_match(am_opts *fo);
52 static int efs_mount(am_node *am, mntfs *mf);
53 static int efs_umount(am_node *am, mntfs *mf);
54
55 /*
56 * Ops structure
57 */
58 am_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 */
83 static char *
efs_match(am_opts * fo)84 efs_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
101 static int
mount_efs(char * mntdir,char * fs_name,char * opts,int on_autofs)102 mount_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
147 static int
efs_mount(am_node * am,mntfs * mf)148 efs_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
164 static int
efs_umount(am_node * am,mntfs * mf)165 efs_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