1/* $NetBSD: mount_udf.c,v 1.12 2008/08/05 20:57:45 pooka Exp $ */
2
3/*
4 * Copyright (c) 2006 Reinoud Zandijk
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *          This product includes software developed for the
18 *          NetBSD Project.  See http://www.NetBSD.org/ for
19 *          information about NetBSD.
20 * 4. The name of the author may not be used to endorse or promote products
21 *    derived from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 *
34 */
35
36
37#include <sys/cdefs.h>
38#ifndef lint
39__RCSID("$NetBSD: mount_udf.c,v 1.12 2008/08/05 20:57:45 pooka Exp $");
40#endif /* not lint */
41
42
43#include <sys/param.h>
44#include <sys/mount.h>
45#include <sys/stat.h>
46
47#include <assert.h>
48#include <err.h>
49#include <errno.h>
50#include <grp.h>
51#include <pwd.h>
52#include <stdio.h>
53#include <stdlib.h>
54#include <string.h>
55#include <time.h>
56#include <unistd.h>
57#include <util.h>
58
59
60/* mount specific options */
61#include <fs/udf/udf_mount.h>
62#include <mntopts.h>
63
64#include "mountprog.h"
65#include "mount_udf.h"
66
67/* options to pass on to the `mount' call */
68static const struct mntopt mopts[] = {
69	MOPT_STDOPTS,		/* `normal' options		*/
70	MOPT_ASYNC,		/* default			*/
71	MOPT_NOATIME,		/* dont update access times	*/
72	MOPT_UPDATE,		/* not yet supported		*/
73	MOPT_GETARGS,		/* printing			*/
74	MOPT_NULL,
75};
76
77
78/* prototypes */
79static void	usage(void) __dead;
80
81
82/* code */
83
84static void
85usage(void)
86{
87	(void)fprintf(stderr, "Usage: %s [-g gid] [-o options] [-s session] "
88	    "[-t gmtoff] [-u uid] special node\n", getprogname());
89	exit(EXIT_FAILURE);
90}
91
92
93#ifndef MOUNT_NOMAIN
94int
95main(int argc, char **argv)
96{
97
98	setprogname(argv[0]);
99	return mount_udf(argc, argv);
100}
101#endif
102
103
104/* main routine */
105void
106mount_udf_parseargs(int argc, char **argv,
107	struct udf_args *args, int *mntflags,
108	char *canon_dev, char *canon_dir)
109{
110	struct tm *tm;
111	time_t	 now;
112	uid_t	 anon_uid, nobody_uid;
113	gid_t	 anon_gid, nobody_gid;
114	int	 ch, set_gmtoff;
115	uint32_t sector_size;
116	mntoptparse_t mp;
117
118	/* initialise */
119	(void)memset(args, 0, sizeof(*args));
120
121	set_gmtoff = *mntflags = 0;
122	sector_size = 0;
123
124	/* get nobody */
125	nobody_uid = anon_uid = a_uid("nobody");
126	nobody_gid = anon_gid = a_gid("nobody");
127
128	/* NEVER EVER allow nobody_uid:nobody_gid to be 0:0 */
129	assert(nobody_uid != 0);
130	assert(nobody_gid != 0);
131
132	while ((ch = getopt(argc, argv, "cg:o:s:t:u:")) != -1) {
133		switch (ch) {
134		case 'c' :
135			args->udfmflags |= UDFMNT_CLOSESESSION;
136			break;
137		case 'g' :
138			/* convert groupname or numeric equiv. */
139			anon_gid = a_gid(optarg);
140			break;
141		case 'u' :
142			/* convert username or numeric equiv. */
143			anon_uid = a_uid(optarg);
144			break;
145		case 'o' :
146			/* process generic mount options */
147			mp = getmntopts(optarg, mopts, mntflags, 0);
148			if (mp == NULL)
149				err(EXIT_FAILURE, "getmntopts");
150			freemntopts(mp);
151			break;
152		case 's' :
153			args->sessionnr = a_num(optarg, "session number");
154			break;
155		case 't' :
156			args->gmtoff = a_num(optarg, "gmtoff");
157			set_gmtoff  = 1;
158			break;
159		default  :
160			usage();
161			/* NOTREACHED */
162		}
163	}
164
165	if (optind + 2 != argc)
166		usage();
167
168	if (!set_gmtoff) {
169		/* use user's time zone as default */
170		(void)time(&now);
171		tm = localtime(&now);
172		args->gmtoff = tm->tm_gmtoff;
173	}
174
175	/* get device and directory specifier */
176	pathadj(argv[optind], canon_dev);
177	pathadj(argv[optind+1], canon_dir);
178
179	args->version = UDFMNT_VERSION;
180	args->fspec = canon_dev;
181	args->anon_uid    = anon_uid;
182	args->anon_gid    = anon_gid;
183	args->nobody_uid  = nobody_uid;
184	args->nobody_gid  = nobody_gid;
185	args->sector_size = sector_size;		/* invalid */
186}
187
188int
189mount_udf(int argc, char *argv[])
190{
191	struct udf_args args;
192	char canon_dev[MAXPATHLEN], canon_dir[MAXPATHLEN];
193	int mntflags;
194
195	mount_udf_parseargs(argc, argv, &args, &mntflags, canon_dev, canon_dir);
196
197	/* mount it! :) */
198	if (mount(MOUNT_UDF, canon_dir, mntflags, &args, sizeof args) == -1)
199		err(EXIT_FAILURE, "Cannot mount %s on %s", canon_dev,canon_dir);
200
201	if (mntflags & MNT_GETARGS) {
202		char buf[1024];
203
204		(void)snprintb(buf, sizeof(buf), UDFMNT_BITS,
205		    (uint64_t)args.udfmflags);
206		(void)printf("gmtoffset=%d, sessionnr=%d, flags=%s\n",
207		    args.gmtoff, args.sessionnr, buf);
208	}
209
210	return EXIT_SUCCESS;
211}
212