mount_udf.c revision 331722 
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: stable/11/sbin/mount_udf/mount_udf.c 331722 2018-03-29 02:50:57Z eadler $
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	char mntpath[MAXPATHLEN];
77	char fstype[] = "udf";
78	struct iovec *iov;
79	char *cs_disk, *cs_local, *dev, *dir;
80	int ch, iovlen, mntflags, udf_flags, verbose;
81
82	iovlen = mntflags = udf_flags = verbose = 0;
83	cs_disk = cs_local = NULL;
84	iov = NULL;
85	while ((ch = getopt(argc, argv, "o:vC:")) != -1)
86		switch (ch) {
87		case 'o':
88			getmntopts(optarg, mopts, &mntflags, NULL);
89			break;
90		case 'v':
91			verbose++;
92			break;
93		case 'C':
94			if (set_charset(&cs_disk, &cs_local, optarg) == -1)
95				err(EX_OSERR, "udf_iconv");
96			udf_flags |= UDFMNT_KICONV;
97			break;
98		case '?':
99		default:
100			usage();
101		}
102	argc -= optind;
103	argv += optind;
104
105	if (argc != 2)
106		usage();
107
108	dev = argv[0];
109	dir = argv[1];
110
111	/*
112	 * Resolve the mountpoint with realpath(3) and remove unnecessary
113	 * slashes from the devicename if there are any.
114	 */
115	if (checkpath(dir, mntpath) != 0)
116		err(EX_USAGE, "%s", mntpath);
117	(void)rmslashes(dev, dev);
118
119	/*
120	 * UDF file systems are not writeable.
121	 */
122	mntflags |= MNT_RDONLY;
123
124	build_iovec(&iov, &iovlen, "fstype", fstype, (size_t)-1);
125	build_iovec(&iov, &iovlen, "fspath", mntpath, (size_t)-1);
126	build_iovec(&iov, &iovlen, "from", dev, (size_t)-1);
127	build_iovec(&iov, &iovlen, "flags", &udf_flags, sizeof(udf_flags));
128	if (udf_flags & UDFMNT_KICONV) {
129		build_iovec(&iov, &iovlen, "cs_disk", cs_disk, (size_t)-1);
130		build_iovec(&iov, &iovlen, "cs_local", cs_local, (size_t)-1);
131	}
132	if (nmount(iov, iovlen, mntflags) < 0)
133		err(1, "%s", dev);
134	exit(0);
135}
136
137int
138set_charset(char **cs_disk, char **cs_local, const char *localcs)
139{
140	int error;
141
142	if (modfind("udf_iconv") < 0)
143		if (kldload("udf_iconv") < 0 || modfind("udf_iconv") < 0) {
144			warnx( "cannot find or load \"udf_iconv\" kernel module");
145			return (-1);
146		}
147
148	if ((*cs_disk = malloc(ICONV_CSNMAXLEN)) == NULL)
149		return (-1);
150	if ((*cs_local = malloc(ICONV_CSNMAXLEN)) == NULL)
151		return (-1);
152	strncpy(*cs_disk, ENCODING_UNICODE, ICONV_CSNMAXLEN);
153	strncpy(*cs_local, localcs, ICONV_CSNMAXLEN);
154	error = kiconv_add_xlat16_cspairs(*cs_disk, *cs_local);
155	if (error)
156		return (-1);
157
158	return (0);
159}
160
161void
162usage(void)
163{
164	(void)fprintf(stderr,
165		"usage: mount_udf [-v] [-o options] [-C charset] special node\n");
166	exit(EX_USAGE);
167}
168