xref: /dragonfly/sbin/mount_ntfs/mount_ntfs.c (revision 2cd2d2b5) 
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 1.6 2004/08/09 14:40:08 eirikn 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 <vfs/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(char *);
61 static uid_t	a_uid(char *);
62 static mode_t	a_mask(char *);
63 static void	usage(void) __dead2;
64 
65 static void     load_u2wtable(struct ntfs_args *, char *);
66 
67 int
68 main(int argc, char **argv)
69 {
70 	struct ntfs_args args;
71 	struct stat sb;
72 	int c, mntflags, set_gid, set_uid, set_mask, error;
73 	char *dev, *dir, mntpath[MAXPATHLEN];
74 #if __FreeBSD_version >= 300000 || defined(__DragonFly__)
75 	struct vfsconf vfc;
76 #else
77 	struct vfsconf *vfc;
78 #endif
79 
80 	mntflags = set_gid = set_uid = set_mask = 0;
81 	(void)memset(&args, '\0', sizeof(args));
82 
83 	while ((c = getopt(argc, argv, "aiu:g:m:o:W:")) !=  -1) {
84 		switch (c) {
85 		case 'u':
86 			args.uid = a_uid(optarg);
87 			set_uid = 1;
88 			break;
89 		case 'g':
90 			args.gid = a_gid(optarg);
91 			set_gid = 1;
92 			break;
93 		case 'm':
94 			args.mode = a_mask(optarg);
95 			set_mask = 1;
96 			break;
97 		case 'i':
98 			args.flag |= NTFS_MFLAG_CASEINS;
99 			break;
100 		case 'a':
101 			args.flag |= NTFS_MFLAG_ALLNAMES;
102 			break;
103 		case 'o':
104 			getmntopts(optarg, mopts, &mntflags, 0);
105 			break;
106 		case 'W':
107 			load_u2wtable(&args, optarg);
108 			args.flag |= NTFSMNT_U2WTABLE;
109 			break;
110 		case '?':
111 		default:
112 			usage();
113 			break;
114 		}
115 	}
116 
117 	if (optind + 2 != argc)
118 		usage();
119 
120 	dev = argv[optind];
121 	dir = argv[optind + 1];
122 
123 	/*
124 	 * Resolve the mountpoint with realpath(3) and remove unnecessary
125 	 * slashes from the devicename if there are any.
126 	 */
127 	(void)checkpath(dir, mntpath);
128 	(void)rmslashes(dev, dev);
129 
130 	args.fspec = dev;
131 	args.export.ex_root = 65534;	/* unchecked anyway on DOS fs */
132 	if (mntflags & MNT_RDONLY)
133 		args.export.ex_flags = MNT_EXRDONLY;
134 	else
135 		args.export.ex_flags = 0;
136 	if (!set_gid || !set_uid || !set_mask) {
137 		if (stat(mntpath, &sb) == -1)
138 			err(EX_OSERR, "stat %s", mntpath);
139 
140 		if (!set_uid)
141 			args.uid = sb.st_uid;
142 		if (!set_gid)
143 			args.gid = sb.st_gid;
144 		if (!set_mask)
145 			args.mode = sb.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO);
146 	}
147 
148 #if __FreeBSD_version >= 300000 || defined(__DragonFly__)
149 	error = getvfsbyname("ntfs", &vfc);
150 	if(error && vfsisloadable("ntfs")) {
151 		if(vfsload("ntfs"))
152 #else
153 	vfc = getvfsbyname("ntfs");
154 	if(!vfc && vfsisloadable("ntfs")) {
155 		if(vfsload("ntfs"))
156 #endif
157 			err(EX_OSERR, "vfsload(ntfs)");
158 		endvfsent();	/* clear cache */
159 #if __FreeBSD_version >= 300000 || defined(__DragonFly__)
160 		error = getvfsbyname("ntfs", &vfc);
161 #else
162 		vfc = getvfsbyname("ntfs");
163 #endif
164 	}
165 #if __FreeBSD_version >= 300000 || defined(__DragonFly__)
166 	if (error)
167 #else
168 	if (!vfc)
169 #endif
170 		errx(EX_OSERR, "ntfs filesystem is not available");
171 
172 #if __FreeBSD_version >= 300000 || defined(__DragonFly__)
173 	if (mount(vfc.vfc_name, mntpath, mntflags, &args) < 0)
174 #else
175 	if (mount(vfc->vfc_index, mntpath, mntflags, &args) < 0)
176 #endif
177 		err(EX_OSERR, "%s", dev);
178 
179 	exit (0);
180 }
181 
182 gid_t
183 a_gid(char *s)
184 {
185 	struct group *gr;
186 	char *gname;
187 	gid_t gid;
188 
189 	if ((gr = getgrnam(s)) != NULL)
190 		gid = gr->gr_gid;
191 	else {
192 		for (gname = s; *s && isdigit(*s); ++s);
193 		if (!*s)
194 			gid = atoi(gname);
195 		else
196 			errx(EX_NOUSER, "unknown group id: %s", gname);
197 	}
198 	return (gid);
199 }
200 
201 uid_t
202 a_uid(char *s)
203 {
204 	struct passwd *pw;
205 	char *uname;
206 	uid_t uid;
207 
208 	if ((pw = getpwnam(s)) != NULL)
209 		uid = pw->pw_uid;
210 	else {
211 		for (uname = s; *s && isdigit(*s); ++s);
212 		if (!*s)
213 			uid = atoi(uname);
214 		else
215 			errx(EX_NOUSER, "unknown user id: %s", uname);
216 	}
217 	return (uid);
218 }
219 
220 mode_t
221 a_mask(char *s)
222 {
223 	int done, rv=0;
224 	char *ep;
225 
226 	done = 0;
227 	if (*s >= '0' && *s <= '7') {
228 		done = 1;
229 		rv = strtol(optarg, &ep, 8);
230 	}
231 	if (!done || rv < 0 || *ep)
232 		errx(EX_USAGE, "invalid file mode: %s", s);
233 	return (rv);
234 }
235 
236 void
237 usage(void)
238 {
239 	fprintf(stderr, "usage: mount_ntfs [-a] [-i] [-u user] [-g group] [-m mask] [-W u2wtable] bdev dir\n");
240 	exit(EX_USAGE);
241 }
242 
243 void
244 load_u2wtable (struct ntfs_args *pargs, char *name)
245 {
246 	FILE *f;
247 	int i, j, code[8];
248 	size_t line = 0;
249 	char buf[128];
250 	char *fn, *s, *p;
251 
252 	if (*name == '/')
253 		fn = name;
254 	else {
255 		snprintf(buf, sizeof(buf), "/usr/libdata/msdosfs/%s", name);
256 		buf[127] = '\0';
257 		fn = buf;
258 	}
259 	if ((f = fopen(fn, "r")) == NULL)
260 		err(EX_NOINPUT, "%s", fn);
261 	p = NULL;
262 	for (i = 0; i < 16; i++) {
263 		do {
264 			if (p != NULL) free(p);
265 			if ((p = s = fparseln(f, NULL, &line, NULL, 0)) == NULL)
266 				errx(EX_DATAERR, "can't read u2w table row %d near line %d", i, line);
267 			while (isspace((unsigned char)*s))
268 				s++;
269 		} while (*s == '\0');
270 		if (sscanf(s, "%i%i%i%i%i%i%i%i",
271 code, code + 1, code + 2, code + 3, code + 4, code + 5, code + 6, code + 7) != 8)
272 			errx(EX_DATAERR, "u2w table: missing item(s) in row %d, line %d", i, line);
273 		for (j = 0; j < 8; j++)
274 			pargs->u2w[i * 8 + j] = code[j];
275 	}
276 	for (i = 0; i < 16; i++) {
277 		do {
278 			free(p);
279 			if ((p = s = fparseln(f, NULL, &line, NULL, 0)) == NULL)
280 				errx(EX_DATAERR, "can't read d2u table row %d near line %d", i, line);
281 			while (isspace((unsigned char)*s))
282 				s++;
283 		} while (*s == '\0');
284 		if (sscanf(s, "%i%i%i%i%i%i%i%i",
285 code, code + 1, code + 2, code + 3, code + 4, code + 5, code + 6, code + 7) != 8)
286 			errx(EX_DATAERR, "d2u table: missing item(s) in row %d, line %d", i, line);
287 		for (j = 0; j < 8; j++)
288 			/* pargs->d2u[i * 8 + j] = code[j] */;
289 	}
290 	for (i = 0; i < 16; i++) {
291 		do {
292 			free(p);
293 			if ((p = s = fparseln(f, NULL, &line, NULL, 0)) == NULL)
294 				errx(EX_DATAERR, "can't read u2d table row %d near line %d", i, line);
295 			while (isspace((unsigned char)*s))
296 				s++;
297 		} while (*s == '\0');
298 		if (sscanf(s, "%i%i%i%i%i%i%i%i",
299 code, code + 1, code + 2, code + 3, code + 4, code + 5, code + 6, code + 7) != 8)
300 			errx(EX_DATAERR, "u2d table: missing item(s) in row %d, line %d", i, line);
301 		for (j = 0; j < 8; j++)
302 			/* pargs->u2d[i * 8 + j] = code[j] */;
303 	}
304 	free(p);
305 	fclose(f);
306 }
307 
308