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_ufs.c
37 *
38 */
39
40 /*
41 * UN*X 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 *ufs_match(am_opts *fo);
52 static int ufs_mount(am_node *am, mntfs *mf);
53 static int ufs_umount(am_node *am, mntfs *mf);
54
55 /*
56 * Ops structure
57 */
58 am_ops ufs_ops =
59 {
60 #ifndef __NetBSD__
61 "ufs",
62 #else
63 "ffs",
64 #endif
65 ufs_match,
66 0, /* ufs_init */
67 ufs_mount,
68 ufs_umount,
69 amfs_error_lookup_child,
70 amfs_error_mount_child,
71 amfs_error_readdir,
72 0, /* ufs_readlink */
73 0, /* ufs_mounted */
74 0, /* ufs_umounted */
75 amfs_generic_find_srvr,
76 0, /* ufs_get_wchan */
77 FS_MKMNT | FS_NOTIMEOUT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */
78 #ifdef HAVE_FS_AUTOFS
79 AUTOFS_UFS_FS_FLAGS,
80 #endif /* HAVE_FS_AUTOFS */
81 };
82
83
84 /*
85 * UFS needs local filesystem and device.
86 */
87 static char *
ufs_match(am_opts * fo)88 ufs_match(am_opts *fo)
89 {
90
91 if (!fo->opt_dev) {
92 plog(XLOG_USER, "ufs: no device specified");
93 return 0;
94 }
95
96 dlog("UFS: mounting device \"%s\" on \"%s\"", fo->opt_dev, fo->opt_fs);
97
98 /*
99 * Determine magic cookie to put in mtab
100 */
101 return xstrdup(fo->opt_dev);
102 }
103
104
105 static int
mount_ufs(char * mntdir,char * fs_name,char * opts,int on_autofs)106 mount_ufs(char *mntdir, char *fs_name, char *opts, int on_autofs)
107 {
108 ufs_args_t ufs_args;
109 mntent_t mnt;
110 int genflags;
111
112 /*
113 * Figure out the name of the file system type.
114 */
115 MTYPE_TYPE type = MOUNT_TYPE_UFS;
116
117 memset((voidp) &ufs_args, 0, sizeof(ufs_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_UFS;
126 mnt.mnt_opts = opts;
127
128 genflags = compute_mount_flags(&mnt);
129 #ifdef HAVE_FS_AUTOFS
130 if (on_autofs)
131 genflags |= autofs_compute_mount_flags(&mnt);
132 #endif /* HAVE_FS_AUTOFS */
133
134 #ifdef HAVE_UFS_ARGS_T_FLAGS
135 ufs_args.flags = genflags; /* XXX: is this correct? */
136 #endif /* HAVE_UFS_ARGS_T_FLAGS */
137
138 #ifdef HAVE_UFS_ARGS_T_UFS_FLAGS
139 ufs_args.ufs_flags = genflags;
140 #endif /* HAVE_UFS_ARGS_T_UFS_FLAGS */
141
142 #ifdef HAVE_UFS_ARGS_T_FSPEC
143 ufs_args.fspec = fs_name;
144 #endif /* HAVE_UFS_ARGS_T_FSPEC */
145
146 #ifdef HAVE_UFS_ARGS_T_UFS_PGTHRESH
147 ufs_args.ufs_pgthresh = hasmntval(&mnt, MNTTAB_OPT_PGTHRESH);
148 #endif /* HAVE_UFS_ARGS_T_UFS_PGTHRESH */
149
150 /*
151 * Call generic mount routine
152 */
153 return mount_fs(&mnt, genflags, (caddr_t) &ufs_args, 0, type, 0, NULL, mnttab_file_name, on_autofs);
154 }
155
156
157 static int
ufs_mount(am_node * am,mntfs * mf)158 ufs_mount(am_node *am, mntfs *mf)
159 {
160 int on_autofs = mf->mf_flags & MFF_ON_AUTOFS;
161 int error;
162
163 error = mount_ufs(mf->mf_mount, mf->mf_info, mf->mf_mopts, on_autofs);
164 if (error) {
165 errno = error;
166 plog(XLOG_ERROR, "mount_ufs: %m");
167 return error;
168 }
169
170 return 0;
171 }
172
173
174 static int
ufs_umount(am_node * am,mntfs * mf)175 ufs_umount(am_node *am, mntfs *mf)
176 {
177 int unmount_flags = (mf->mf_flags & MFF_ON_AUTOFS) ? AMU_UMOUNT_AUTOFS : 0;
178
179 return UMOUNT_FS(mf->mf_mount, mnttab_file_name, unmount_flags);
180 }
181