xref: /dragonfly/sbin/mount_ntfs/mount_ntfs.c (revision 1de703da) 
1 /*
2  * Copyright (c) 1994 Christopher G. Demetriou
3  * Copyright (c) 1999 Semen Ustimenko
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. All advertising materials mentioning features or use of this software
15  *    must display the following acknowledgement:
16  *      This product includes software developed by Christopher G. Demetriou.
17  * 4. The name of the author may not be used to endorse or promote products
18  *    derived from this software without specific prior written permission
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30  *
31  * $FreeBSD: src/sbin/mount_ntfs/mount_ntfs.c,v 1.3.2.2 2001/10/12 22:08:43 semenu Exp $
32  * $DragonFly: src/sbin/mount_ntfs/mount_ntfs.c,v 1.2 2003/06/17 04:27:33 dillon Exp $
33  *
34  */
35 
36 #include <sys/cdefs.h>
37 #include <sys/param.h>
38 #define NTFS
39 #include <sys/mount.h>
40 #include <sys/stat.h>
41 #include <ntfs/ntfsmount.h>
42 #include <ctype.h>
43 #include <err.h>
44 #include <grp.h>
45 #include <pwd.h>
46 #include <stdio.h>
47 #include <stdlib.h>
48 #include <string.h>
49 #include <sysexits.h>
50 #include <unistd.h>
51 #include <libutil.h>
52 
53 #include "mntopts.h"
54 
55 static struct mntopt mopts[] = {
56 	MOPT_STDOPTS,
57 	{ NULL }
58 };
59 
60 static gid_t	a_gid __P((char *));
61 static uid_t	a_uid __P((char *));
62 static mode_t	a_mask __P((char *));
63 static void	usage __P((void)) __dead2;
64 
65 static void     load_u2wtable __P((struct ntfs_args *, char *));
66 
67 int
68 main(argc, argv)
69 	int argc;
70 	char **argv;
71 {
72 	struct ntfs_args args;
73 	struct stat sb;
74 	int c, mntflags, set_gid, set_uid, set_mask, error;
75 	char *dev, *dir, mntpath[MAXPATHLEN];
76 #if __FreeBSD_version >= 300000
77 	struct vfsconf vfc;
78 #else
79 	struct vfsconf *vfc;
80 #endif
81 
82 	mntflags = set_gid = set_uid = set_mask = 0;
83 	(void)memset(&args, '\0', sizeof(args));
84 
85 	while ((c = getopt(argc, argv, "aiu:g:m:o:W:")) !=  -1) {
86 		switch (c) {
87 		case 'u':
88 			args.uid = a_uid(optarg);
89 			set_uid = 1;
90 			break;
91 		case 'g':
92 			args.gid = a_gid(optarg);
93 			set_gid = 1;
94 			break;
95 		case 'm':
96 			args.mode = a_mask(optarg);
97 			set_mask = 1;
98 			break;
99 		case 'i':
100 			args.flag |= NTFS_MFLAG_CASEINS;
101 			break;
102 		case 'a':
103 			args.flag |= NTFS_MFLAG_ALLNAMES;
104 			break;
105 		case 'o':
106 			getmntopts(optarg, mopts, &mntflags, 0);
107 			break;
108 		case 'W':
109 			load_u2wtable(&args, optarg);
110 			args.flag |= NTFSMNT_U2WTABLE;
111 			break;
112 		case '?':
113 		default:
114 			usage();
115 			break;
116 		}
117 	}
118 
119 	if (optind + 2 != argc)
120 		usage();
121 
122 	dev = argv[optind];
123 	dir = argv[optind + 1];
124 
125 	/*
126 	 * Resolve the mountpoint with realpath(3) and remove unnecessary
127 	 * slashes from the devicename if there are any.
128 	 */
129 	(void)checkpath(dir, mntpath);
130 	(void)rmslashes(dev, dev);
131 
132 	args.fspec = dev;
133 	args.export.ex_root = 65534;	/* unchecked anyway on DOS fs */
134 	if (mntflags & MNT_RDONLY)
135 		args.export.ex_flags = MNT_EXRDONLY;
136 	else
137 		args.export.ex_flags = 0;
138 	if (!set_gid || !set_uid || !set_mask) {
139 		if (stat(mntpath, &sb) == -1)
140 			err(EX_OSERR, "stat %s", mntpath);
141 
142 		if (!set_uid)
143 			args.uid = sb.st_uid;
144 		if (!set_gid)
145 			args.gid = sb.st_gid;
146 		if (!set_mask)
147 			args.mode = sb.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO);
148 	}
149 
150 #if __FreeBSD_version >= 300000
151 	error = getvfsbyname("ntfs", &vfc);
152 	if(error && vfsisloadable("ntfs")) {
153 		if(vfsload("ntfs"))
154 #else
155 	vfc = getvfsbyname("ntfs");
156 	if(!vfc && vfsisloadable("ntfs")) {
157 		if(vfsload("ntfs"))
158 #endif
159 			err(EX_OSERR, "vfsload(ntfs)");
160 		endvfsent();	/* clear cache */
161 #if __FreeBSD_version >= 300000
162 		error = getvfsbyname("ntfs", &vfc);
163 #else
164 		vfc = getvfsbyname("ntfs");
165 #endif
166 	}
167 #if __FreeBSD_version >= 300000
168 	if (error)
169 #else
170 	if (!vfc)
171 #endif
172 		errx(EX_OSERR, "ntfs filesystem is not available");
173 
174 #if __FreeBSD_version >= 300000
175 	if (mount(vfc.vfc_name, mntpath, mntflags, &args) < 0)
176 #else
177 	if (mount(vfc->vfc_index, mntpath, mntflags, &args) < 0)
178 #endif
179 		err(EX_OSERR, "%s", dev);
180 
181 	exit (0);
182 }
183 
184 gid_t
185 a_gid(s)
186 	char *s;
187 {
188 	struct group *gr;
189 	char *gname;
190 	gid_t gid;
191 
192 	if ((gr = getgrnam(s)) != NULL)
193 		gid = gr->gr_gid;
194 	else {
195 		for (gname = s; *s && isdigit(*s); ++s);
196 		if (!*s)
197 			gid = atoi(gname);
198 		else
199 			errx(EX_NOUSER, "unknown group id: %s", gname);
200 	}
201 	return (gid);
202 }
203 
204 uid_t
205 a_uid(s)
206 	char *s;
207 {
208 	struct passwd *pw;
209 	char *uname;
210 	uid_t uid;
211 
212 	if ((pw = getpwnam(s)) != NULL)
213 		uid = pw->pw_uid;
214 	else {
215 		for (uname = s; *s && isdigit(*s); ++s);
216 		if (!*s)
217 			uid = atoi(uname);
218 		else
219 			errx(EX_NOUSER, "unknown user id: %s", uname);
220 	}
221 	return (uid);
222 }
223 
224 mode_t
225 a_mask(s)
226 	char *s;
227 {
228 	int done, rv=0;
229 	char *ep;
230 
231 	done = 0;
232 	if (*s >= '0' && *s <= '7') {
233 		done = 1;
234 		rv = strtol(optarg, &ep, 8);
235 	}
236 	if (!done || rv < 0 || *ep)
237 		errx(EX_USAGE, "invalid file mode: %s", s);
238 	return (rv);
239 }
240 
241 void
242 usage()
243 {
244 	fprintf(stderr, "usage: mount_ntfs [-a] [-i] [-u user] [-g group] [-m mask] [-W u2wtable] bdev dir\n");
245 	exit(EX_USAGE);
246 }
247 
248 void
249 load_u2wtable (pargs, name)
250 	struct ntfs_args *pargs;
251 	char *name;
252 {
253 	FILE *f;
254 	int i, j, code[8];
255 	size_t line = 0;
256 	char buf[128];
257 	char *fn, *s, *p;
258 
259 	if (*name == '/')
260 		fn = name;
261 	else {
262 		snprintf(buf, sizeof(buf), "/usr/libdata/msdosfs/%s", name);
263 		buf[127] = '\0';
264 		fn = buf;
265 	}
266 	if ((f = fopen(fn, "r")) == NULL)
267 		err(EX_NOINPUT, "%s", fn);
268 	p = NULL;
269 	for (i = 0; i < 16; i++) {
270 		do {
271 			if (p != NULL) free(p);
272 			if ((p = s = fparseln(f, NULL, &line, NULL, 0)) == NULL)
273 				errx(EX_DATAERR, "can't read u2w table row %d near line %d", i, line);
274 			while (isspace((unsigned char)*s))
275 				s++;
276 		} while (*s == '\0');
277 		if (sscanf(s, "%i%i%i%i%i%i%i%i",
278 code, code + 1, code + 2, code + 3, code + 4, code + 5, code + 6, code + 7) != 8)
279 			errx(EX_DATAERR, "u2w table: missing item(s) in row %d, line %d", i, line);
280 		for (j = 0; j < 8; j++)
281 			pargs->u2w[i * 8 + j] = code[j];
282 	}
283 	for (i = 0; i < 16; i++) {
284 		do {
285 			free(p);
286 			if ((p = s = fparseln(f, NULL, &line, NULL, 0)) == NULL)
287 				errx(EX_DATAERR, "can't read d2u table row %d near line %d", i, line);
288 			while (isspace((unsigned char)*s))
289 				s++;
290 		} while (*s == '\0');
291 		if (sscanf(s, "%i%i%i%i%i%i%i%i",
292 code, code + 1, code + 2, code + 3, code + 4, code + 5, code + 6, code + 7) != 8)
293 			errx(EX_DATAERR, "d2u table: missing item(s) in row %d, line %d", i, line);
294 		for (j = 0; j < 8; j++)
295 			/* pargs->d2u[i * 8 + j] = code[j] */;
296 	}
297 	for (i = 0; i < 16; i++) {
298 		do {
299 			free(p);
300 			if ((p = s = fparseln(f, NULL, &line, NULL, 0)) == NULL)
301 				errx(EX_DATAERR, "can't read u2d table row %d near line %d", i, line);
302 			while (isspace((unsigned char)*s))
303 				s++;
304 		} while (*s == '\0');
305 		if (sscanf(s, "%i%i%i%i%i%i%i%i",
306 code, code + 1, code + 2, code + 3, code + 4, code + 5, code + 6, code + 7) != 8)
307 			errx(EX_DATAERR, "u2d table: missing item(s) in row %d, line %d", i, line);
308 		for (j = 0; j < 8; j++)
309 			/* pargs->u2d[i * 8 + j] = code[j] */;
310 	}
311 	free(p);
312 	fclose(f);
313 }
314 
315