mount_udf.c revision 230226 
1/*
2 * Copyright (c) 1992, 1993, 1994
3 *      The Regents of the University of California.  All rights reserved.
4 * Copyright (c) 2002 Scott Long
5 *
6 * This code is derived from software contributed to Berkeley
7 * by Pace Willisson (pace@blitz.com).  The Rock Ridge Extension
8 * Support code is derived from software contributed to Berkeley
9 * by Atsushi Murai (amurai@spec.co.jp).
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 * 4. 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 * $FreeBSD: head/sbin/mount_udf/mount_udf.c 230226 2012-01-16 19:34:21Z jh $
36 */
37
38/*
39 * This is just a rip-off of mount_iso9660.c.  It's been vastly simplified
40 * because UDF doesn't take any options at this time.
41 */
42
43#include <sys/cdio.h>
44#include <sys/file.h>
45#include <sys/iconv.h>
46#include <sys/param.h>
47#include <sys/linker.h>
48#include <sys/module.h>
49#include <sys/mount.h>
50#include <sys/uio.h>
51
52#include <fs/udf/udf_mount.h>
53
54#include <err.h>
55#include <errno.h>
56#include <stdlib.h>
57#include <stdio.h>
58#include <string.h>
59#include <sysexits.h>
60#include <unistd.h>
61
62#include "mntopts.h"
63
64static struct mntopt mopts[] = {
65	MOPT_STDOPTS,
66	MOPT_UPDATE,
67	MOPT_END
68};
69
70int	set_charset(char **, char **, const char *);
71void	usage(void);
72
73int
74main(int argc, char **argv)
75{
76	struct iovec iov[12];
77	int ch, i, mntflags, opts, udf_flags;
78	char *dev, *dir, mntpath[MAXPATHLEN];
79	char *cs_disk, *cs_local;
80	int verbose;
81
82	i = mntflags = opts = udf_flags = verbose = 0;
83	cs_disk = cs_local = NULL;
84	while ((ch = getopt(argc, argv, "o:vC:")) != -1)
85		switch (ch) {
86		case 'o':
87			getmntopts(optarg, mopts, &mntflags, &opts);
88			break;
89		case 'v':
90			verbose++;
91			break;
92		case 'C':
93			if (set_charset(&cs_disk, &cs_local, optarg) == -1)
94				err(EX_OSERR, "udf_iconv");
95			udf_flags |= UDFMNT_KICONV;
96			break;
97		case '?':
98		default:
99			usage();
100		}
101	argc -= optind;
102	argv += optind;
103
104	if (argc != 2)
105		usage();
106
107	dev = argv[0];
108	dir = argv[1];
109
110	/*
111	 * Resolve the mountpoint with realpath(3) and remove unnecessary
112	 * slashes from the devicename if there are any.
113	 */
114	if (checkpath(dir, mntpath) != 0)
115		err(EX_USAGE, "%s", mntpath);
116	(void)rmslashes(dev, dev);
117
118	/*
119	 * UDF file systems are not writeable.
120	 */
121	mntflags |= MNT_RDONLY;
122
123	iov[i].iov_base = "fstype";
124	iov[i++].iov_len = sizeof("fstype");
125	iov[i].iov_base = "udf";
126	iov[i].iov_len = strlen(iov[i].iov_base) + 1;
127	i++;
128	iov[i].iov_base = "fspath";
129	iov[i++].iov_len = sizeof("fspath");
130	iov[i].iov_base = mntpath;
131	iov[i++].iov_len = strlen(mntpath) + 1;
132	iov[i].iov_base = "from";
133	iov[i++].iov_len = sizeof("from");
134	iov[i].iov_base = dev;
135	iov[i++].iov_len = strlen(dev) + 1;
136	iov[i].iov_base = "flags";
137	iov[i++].iov_len = sizeof("flags");
138	iov[i].iov_base = &udf_flags;
139	iov[i++].iov_len = sizeof(udf_flags);
140	if (udf_flags & UDFMNT_KICONV) {
141		iov[i].iov_base = "cs_disk";
142		iov[i++].iov_len = sizeof("cs_disk");
143		iov[i].iov_base = cs_disk;
144		iov[i++].iov_len = strlen(cs_disk) + 1;
145		iov[i].iov_base = "cs_local";
146		iov[i++].iov_len = sizeof("cs_local");
147		iov[i].iov_base = cs_local;
148		iov[i++].iov_len = strlen(cs_local) + 1;
149	}
150	if (nmount(iov, i, mntflags) < 0)
151		err(1, "%s", dev);
152	exit(0);
153}
154
155int
156set_charset(char **cs_disk, char **cs_local, const char *localcs)
157{
158	int error;
159
160	if (modfind("udf_iconv") < 0)
161		if (kldload("udf_iconv") < 0 || modfind("udf_iconv") < 0) {
162			warnx( "cannot find or load \"udf_iconv\" kernel module");
163			return (-1);
164		}
165
166	if ((*cs_disk = malloc(ICONV_CSNMAXLEN)) == NULL)
167		return (-1);
168	if ((*cs_local = malloc(ICONV_CSNMAXLEN)) == NULL)
169		return (-1);
170	strncpy(*cs_disk, ENCODING_UNICODE, ICONV_CSNMAXLEN);
171	strncpy(*cs_local, localcs, ICONV_CSNMAXLEN);
172	error = kiconv_add_xlat16_cspairs(*cs_disk, *cs_local);
173	if (error)
174		return (-1);
175
176	return (0);
177}
178
179void
180usage(void)
181{
182	(void)fprintf(stderr,
183		"usage: mount_udf [-v] [-o options] [-C charset] special node\n");
184	exit(EX_USAGE);
185}
186