1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1992, 1993, 1994
5 * The Regents of the University of California. All rights reserved.
6 * Copyright (c) 2002 Scott Long
7 *
8 * This code is derived from software contributed to Berkeley
9 * by Pace Willisson (pace@blitz.com). The Rock Ridge Extension
10 * Support code is derived from software contributed to Berkeley
11 * by Atsushi Murai (amurai@spec.co.jp).
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 * $FreeBSD: stable/12/sbin/mount_udf/mount_udf.c 326025 2017-11-20 19:49:47Z pfg $
38 */
39
40 /*
41 * This is just a rip-off of mount_iso9660.c. It's been vastly simplified
42 * because UDF doesn't take any options at this time.
43 */
44
45 #include <sys/cdio.h>
46 #include <sys/file.h>
47 #include <sys/iconv.h>
48 #include <sys/param.h>
49 #include <sys/linker.h>
50 #include <sys/module.h>
51 #include <sys/mount.h>
52 #include <sys/uio.h>
53
54 #include <fs/udf/udf_mount.h>
55
56 #include <err.h>
57 #include <errno.h>
58 #include <stdlib.h>
59 #include <stdio.h>
60 #include <string.h>
61 #include <sysexits.h>
62 #include <unistd.h>
63
64 #include "mntopts.h"
65
66 static struct mntopt mopts[] = {
67 MOPT_STDOPTS,
68 MOPT_UPDATE,
69 MOPT_END
70 };
71
72 int set_charset(char **, char **, const char *);
73 void usage(void);
74
75 int
main(int argc,char ** argv)76 main(int argc, char **argv)
77 {
78 char mntpath[MAXPATHLEN];
79 char fstype[] = "udf";
80 struct iovec *iov;
81 char *cs_disk, *cs_local, *dev, *dir;
82 int ch, iovlen, mntflags, udf_flags, verbose;
83
84 iovlen = mntflags = udf_flags = verbose = 0;
85 cs_disk = cs_local = NULL;
86 iov = NULL;
87 while ((ch = getopt(argc, argv, "o:vC:")) != -1)
88 switch (ch) {
89 case 'o':
90 getmntopts(optarg, mopts, &mntflags, NULL);
91 break;
92 case 'v':
93 verbose++;
94 break;
95 case 'C':
96 if (set_charset(&cs_disk, &cs_local, optarg) == -1)
97 err(EX_OSERR, "udf_iconv");
98 udf_flags |= UDFMNT_KICONV;
99 break;
100 case '?':
101 default:
102 usage();
103 }
104 argc -= optind;
105 argv += optind;
106
107 if (argc != 2)
108 usage();
109
110 dev = argv[0];
111 dir = argv[1];
112
113 /*
114 * Resolve the mountpoint with realpath(3) and remove unnecessary
115 * slashes from the devicename if there are any.
116 */
117 if (checkpath(dir, mntpath) != 0)
118 err(EX_USAGE, "%s", mntpath);
119 (void)rmslashes(dev, dev);
120
121 /*
122 * UDF file systems are not writeable.
123 */
124 mntflags |= MNT_RDONLY;
125
126 build_iovec(&iov, &iovlen, "fstype", fstype, (size_t)-1);
127 build_iovec(&iov, &iovlen, "fspath", mntpath, (size_t)-1);
128 build_iovec(&iov, &iovlen, "from", dev, (size_t)-1);
129 build_iovec(&iov, &iovlen, "flags", &udf_flags, sizeof(udf_flags));
130 if (udf_flags & UDFMNT_KICONV) {
131 build_iovec(&iov, &iovlen, "cs_disk", cs_disk, (size_t)-1);
132 build_iovec(&iov, &iovlen, "cs_local", cs_local, (size_t)-1);
133 }
134 if (nmount(iov, iovlen, mntflags) < 0)
135 err(1, "%s", dev);
136 exit(0);
137 }
138
139 int
set_charset(char ** cs_disk,char ** cs_local,const char * localcs)140 set_charset(char **cs_disk, char **cs_local, const char *localcs)
141 {
142 int error;
143
144 if (modfind("udf_iconv") < 0)
145 if (kldload("udf_iconv") < 0 || modfind("udf_iconv") < 0) {
146 warnx( "cannot find or load \"udf_iconv\" kernel module");
147 return (-1);
148 }
149
150 if ((*cs_disk = malloc(ICONV_CSNMAXLEN)) == NULL)
151 return (-1);
152 if ((*cs_local = malloc(ICONV_CSNMAXLEN)) == NULL)
153 return (-1);
154 strncpy(*cs_disk, ENCODING_UNICODE, ICONV_CSNMAXLEN);
155 strncpy(*cs_local, localcs, ICONV_CSNMAXLEN);
156 error = kiconv_add_xlat16_cspairs(*cs_disk, *cs_local);
157 if (error)
158 return (-1);
159
160 return (0);
161 }
162
163 void
usage(void)164 usage(void)
165 {
166 (void)fprintf(stderr,
167 "usage: mount_udf [-v] [-o options] [-C charset] special node\n");
168 exit(EX_USAGE);
169 }
170