2 * Copyright (c) 1992, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley
6 * by Pace Willisson (pace@blitz.com). The Rock Ridge Extension
7 * Support code is derived from software contributed to Berkeley
8 * by Atsushi Murai (amurai@spec.co.jp).
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the University of
21 * California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * @(#)mount_cd9660.c 8.7 (Berkeley) 5/1/95
40 * @(#) Copyright (c) 1992, 1993, 1994 The Regents of the University of California. All rights reserved.
41 * @(#)mount_cd9660.c 8.7 (Berkeley) 5/1/95
42 * $FreeBSD: src/sbin/mount_cd9660/mount_cd9660.c,v 1.15.2.3 2001/03/14 12:05:01 bp Exp $
43 * $DragonFly: src/sbin/mount_cd9660/mount_cd9660.c,v 1.5 2005/04/02 21:43:15 dillon Exp $
48 #include <sys/param.h>
49 #include <sys/mount.h>
50 #include <sys/iconv.h>
51 #include <sys/linker.h>
52 #include <sys/module.h>
53 #include <vfs/isofs/cd9660/cd9660_mount.h>
66 struct mntopt mopts[] = {
69 { "extatt", 0, ISOFSMNT_EXTATT, 1 },
70 { "gens", 0, ISOFSMNT_GENS, 1 },
71 { "rrip", 1, ISOFSMNT_NORRIP, 1 },
72 { "joliet", 1, ISOFSMNT_NOJOLIET, 1 },
73 { "strictjoliet", 1, ISOFSMNT_BROKENJOLIET, 1 },
77 static int get_ssector(const char *dev);
78 static void usage(void);
79 int set_charset(struct iso_args *args, const char *cs_local, const char *cs_disk);
82 main(int argc, char **argv)
85 int ch, mntflags, opts;
86 char *dev, *dir, mntpath[MAXPATHLEN];
90 char *cs_local = NULL;
92 mntflags = opts = verbose = 0;
93 memset(&args, 0, sizeof args);
95 while ((ch = getopt(argc, argv, "begjo:rs:C:v")) != -1)
98 opts |= ISOFSMNT_BROKENJOLIET;
101 opts |= ISOFSMNT_EXTATT;
104 opts |= ISOFSMNT_GENS;
107 opts |= ISOFSMNT_NOJOLIET;
110 quirk = kiconv_quirkcs(optarg, KICONV_VENDOR_MICSFT);
111 cs_local = strdup(quirk);
112 if (set_charset(&args, cs_local, NULL) == -1)
113 err(EX_OSERR, "cd9660_iconv");
114 opts |= ISOFSMNT_KICONV;
117 getmntopts(optarg, mopts, &mntflags, &opts);
120 opts |= ISOFSMNT_NORRIP;
123 args.ssector = atoi(optarg);
142 * Resolve the mountpoint with realpath(3) and remove unnecessary
143 * slashes from the devicename if there are any.
145 checkpath(dir, mntpath);
148 #define DEFAULT_ROOTUID -2
150 * ISO 9660 filesystems are not writeable.
152 mntflags |= MNT_RDONLY;
153 args.export.ex_flags = MNT_EXRDONLY;
155 args.export.ex_root = DEFAULT_ROOTUID;
158 if (args.ssector == -1) {
160 * The start of the session has not been specified on
161 * the command line. If we can successfully read the
162 * TOC of a CD-ROM, use the last data track we find.
163 * Otherwise, just use 0, in order to mount the very
164 * first session. This is compatible with the
165 * historic behaviour of mount_cd9660(8). If the user
166 * has specified -s <ssector> above, we don't get here
167 * and leave the user's will.
169 if ((args.ssector = get_ssector(dev)) == -1) {
171 printf("could not determine starting sector, "
172 "using very first session\n");
175 printf("using starting sector %d\n", args.ssector);
178 error = getvfsbyname("cd9660", &vfc);
179 if (error && vfsisloadable("cd9660")) {
180 if (vfsload("cd9660"))
181 err(EX_OSERR, "vfsload(cd9660)");
182 endvfsent(); /* flush cache */
183 error = getvfsbyname("cd9660", &vfc);
186 errx(1, "cd9660 filesystem is not available");
188 if (mount(vfc.vfc_name, mntpath, mntflags, &args) < 0)
189 err(1, "%s", args.fspec);
194 set_charset(struct iso_args *args, const char *cs_local, const char *cs_disk)
197 if (modfind("cd9660_iconv") < 0) {
198 if (kldload("cd9660_iconv") < 0 || modfind("cd9660_iconv") < 0)
200 warnx("cannot find or load \"cd9660_iconv\" kernel module");
204 snprintf(args->cs_local, ICONV_CSNMAXLEN, "%s", cs_local);
205 error = kiconv_add_xlat16_cspairs(ENCODING_UNICODE, cs_local);
209 cs_disk = strdup(ENCODING_UNICODE);
210 snprintf(args->cs_disk, ICONV_CSNMAXLEN, "%s", cs_disk);
211 error = kiconv_add_xlat16_cspairs(cs_disk, cs_local);
222 "usage: mount_cd9660 [-egrv] [-C charset] [-o options] [-s startsector] special node\n");
227 get_ssector(const char *dev)
229 struct ioc_toc_header h;
230 struct ioc_read_toc_entry t;
231 struct cd_toc_entry toc_buffer[100];
232 int fd, ntocentries, i;
234 if ((fd = open(dev, O_RDONLY)) == -1)
236 if (ioctl(fd, CDIOREADTOCHEADER, &h) == -1) {
241 ntocentries = h.ending_track - h.starting_track + 1;
242 if (ntocentries > 100) {
243 /* unreasonable, only 100 allowed */
247 t.address_format = CD_LBA_FORMAT;
248 t.starting_track = 0;
249 t.data_len = ntocentries * sizeof(struct cd_toc_entry);
252 if (ioctl(fd, CDIOREADTOCENTRYS, (char *) &t) == -1) {
258 for (i = ntocentries - 1; i >= 0; i--)
259 if ((toc_buffer[i].control & 4) != 0)
260 /* found a data track */
265 return ntohl(toc_buffer[i].addr.lba);