1 /* $NetBSD: ops_ufs.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_ufs.c
39 *
40 */
41
42 /*
43 * UN*X 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 *ufs_match(am_opts *fo);
54 static int ufs_mount(am_node *am, mntfs *mf);
55 static int ufs_umount(am_node *am, mntfs *mf);
56
57 /*
58 * Ops structure
59 */
60 am_ops ufs_ops =
61 {
62 #ifndef __NetBSD__
63 "ufs",
64 #else
65 "ffs",
66 #endif
67 ufs_match,
68 0, /* ufs_init */
69 ufs_mount,
70 ufs_umount,
71 amfs_error_lookup_child,
72 amfs_error_mount_child,
73 amfs_error_readdir,
74 0, /* ufs_readlink */
75 0, /* ufs_mounted */
76 0, /* ufs_umounted */
77 amfs_generic_find_srvr,
78 0, /* ufs_get_wchan */
79 FS_MKMNT | FS_NOTIMEOUT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */
80 #ifdef HAVE_FS_AUTOFS
81 AUTOFS_UFS_FS_FLAGS,
82 #endif /* HAVE_FS_AUTOFS */
83 };
84
85
86 /*
87 * UFS needs local filesystem and device.
88 */
89 static char *
ufs_match(am_opts * fo)90 ufs_match(am_opts *fo)
91 {
92
93 if (!fo->opt_dev) {
94 plog(XLOG_USER, "ufs: no device specified");
95 return 0;
96 }
97
98 dlog("UFS: mounting device \"%s\" on \"%s\"", fo->opt_dev, fo->opt_fs);
99
100 /*
101 * Determine magic cookie to put in mtab
102 */
103 return xstrdup(fo->opt_dev);
104 }
105
106
107 static int
mount_ufs(char * mntdir,char * fs_name,char * opts,int on_autofs)108 mount_ufs(char *mntdir, char *fs_name, char *opts, int on_autofs)
109 {
110 ufs_args_t ufs_args;
111 mntent_t mnt;
112 int genflags;
113
114 /*
115 * Figure out the name of the file system type.
116 */
117 MTYPE_TYPE type = MOUNT_TYPE_UFS;
118
119 memset((voidp) &ufs_args, 0, sizeof(ufs_args)); /* Paranoid */
120
121 /*
122 * Fill in the mount structure
123 */
124 memset((voidp) &mnt, 0, sizeof(mnt));
125 mnt.mnt_dir = mntdir;
126 mnt.mnt_fsname = fs_name;
127 mnt.mnt_type = MNTTAB_TYPE_UFS;
128 mnt.mnt_opts = opts;
129
130 genflags = compute_mount_flags(&mnt);
131 #ifdef HAVE_FS_AUTOFS
132 if (on_autofs)
133 genflags |= autofs_compute_mount_flags(&mnt);
134 #endif /* HAVE_FS_AUTOFS */
135
136 #ifdef HAVE_UFS_ARGS_T_FLAGS
137 ufs_args.flags = genflags; /* XXX: is this correct? */
138 #endif /* HAVE_UFS_ARGS_T_FLAGS */
139
140 #ifdef HAVE_UFS_ARGS_T_UFS_FLAGS
141 ufs_args.ufs_flags = genflags;
142 #endif /* HAVE_UFS_ARGS_T_UFS_FLAGS */
143
144 #ifdef HAVE_UFS_ARGS_T_FSPEC
145 ufs_args.fspec = fs_name;
146 #endif /* HAVE_UFS_ARGS_T_FSPEC */
147
148 #ifdef HAVE_UFS_ARGS_T_UFS_PGTHRESH
149 ufs_args.ufs_pgthresh = hasmntval(&mnt, MNTTAB_OPT_PGTHRESH);
150 #endif /* HAVE_UFS_ARGS_T_UFS_PGTHRESH */
151
152 /*
153 * Call generic mount routine
154 */
155 return mount_fs(&mnt, genflags, (caddr_t) &ufs_args, 0, type, 0, NULL, mnttab_file_name, on_autofs);
156 }
157
158
159 static int
ufs_mount(am_node * am,mntfs * mf)160 ufs_mount(am_node *am, mntfs *mf)
161 {
162 int on_autofs = mf->mf_flags & MFF_ON_AUTOFS;
163 int error;
164
165 error = mount_ufs(mf->mf_mount, mf->mf_info, mf->mf_mopts, on_autofs);
166 if (error) {
167 errno = error;
168 plog(XLOG_ERROR, "mount_ufs: %m");
169 return error;
170 }
171
172 return 0;
173 }
174
175
176 static int
ufs_umount(am_node * am,mntfs * mf)177 ufs_umount(am_node *am, mntfs *mf)
178 {
179 int unmount_flags = (mf->mf_flags & MFF_ON_AUTOFS) ? AMU_UMOUNT_AUTOFS : 0;
180
181 return UMOUNT_FS(mf->mf_mount, mnttab_file_name, unmount_flags);
182 }
183