1 /* $NetBSD: mount_filecore.c,v 1.21 2020/07/26 08:20:22 mlelstv Exp $ */
2
3 /*
4 * Copyright (c) 1992, 1993, 1994 The Regents of the University of California.
5 * All rights reserved.
6 *
7 * This code is contains code contributed to the NetBSD project by
8 * Christopher G. Demetriou
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
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. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * mount_filecore.c 1.1 1998/6/26
35 */
36
37 /*
38 * Copyright (c) 1998 Andrew McMurry
39 *
40 * This code is contains code contributed to the NetBSD project by
41 * Christopher G. Demetriou
42 *
43 * Redistribution and use in source and binary forms, with or without
44 * modification, are permitted provided that the following conditions
45 * are met:
46 * 1. Redistributions of source code must retain the above copyright
47 * notice, this list of conditions and the following disclaimer.
48 * 2. Redistributions in binary form must reproduce the above copyright
49 * notice, this list of conditions and the following disclaimer in the
50 * documentation and/or other materials provided with the distribution.
51 * 3. All advertising materials mentioning features or use of this software
52 * must display the following acknowledgement:
53 * This product includes software developed by the University of
54 * California, Berkeley and its contributors.
55 * 4. Neither the name of the University nor the names of its contributors
56 * may be used to endorse or promote products derived from this software
57 * without specific prior written permission.
58 *
59 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
61 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
62 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
63 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
64 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
65 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
66 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
67 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
69 * SUCH DAMAGE.
70 *
71 * mount_filecore.c 1.1 1998/6/26
72 */
73
74 #include <sys/cdefs.h>
75 #ifndef lint
76 __COPYRIGHT("@(#) Copyright (c) 1992, 1993, 1994\
77 The Regents of the University of California.\
78 Copyright (c) 1998 Andrew McMurry. All rights reserved.");
79 #endif /* not lint */
80
81 #include <sys/param.h>
82 #include <sys/mount.h>
83
84 #include <err.h>
85 #include <grp.h>
86 #include <pwd.h>
87 #include <stdlib.h>
88 #include <stdio.h>
89 #include <string.h>
90 #include <unistd.h>
91 #include <util.h>
92
93 #include <filecorefs/filecore_mount.h>
94
95 #include <mntopts.h>
96
97 #include "mountprog.h"
98
99 static const struct mntopt mopts[] = {
100 MOPT_STDOPTS,
101 MOPT_UPDATE,
102 MOPT_GETARGS,
103 MOPT_NULL,
104 };
105
106 int mount_filecore(int argc, char **argv);
107 __dead static void usage(void);
108
109 #ifndef MOUNT_NOMAIN
110 int
main(int argc,char ** argv)111 main(int argc, char **argv)
112 {
113 return mount_filecore(argc, argv);
114 }
115 #endif
116
117 int
mount_filecore(int argc,char ** argv)118 mount_filecore(int argc, char **argv)
119 {
120 struct filecore_args args;
121 int ch, mntflags, opts, useuid;
122 char *dev, *dir, canon_dev[MAXPATHLEN], canon_dir[MAXPATHLEN];
123 mntoptparse_t mp;
124
125 mntflags = opts = 0;
126 useuid = 1;
127 args.uid = 0;
128 args.gid = 0;
129
130 while ((ch = getopt(argc, argv, "anRfu:g:o:")) != -1)
131 switch (ch) {
132 case 'a':
133 args.flags |= FILECOREMNT_ALLACCESS;
134 break;
135 case 'n':
136 args.flags |= FILECOREMNT_OWNACCESS;
137 break;
138 case 'R':
139 args.flags |= FILECOREMNT_OWNREAD;
140 break;
141 case 'f':
142 args.flags |= FILECOREMNT_FILETYPE;
143 break;
144 case 'u':
145 args.uid = a_uid(optarg);
146 useuid = 0;
147 break;
148 case 'g':
149 args.gid = a_gid(optarg);
150 useuid = 0;
151 break;
152 case 'o':
153 mp = getmntopts(optarg, mopts, &mntflags, 0);
154 if (mp == NULL)
155 err(1, "getmntopts");
156 freemntopts(mp);
157 break;
158 case '?':
159 default:
160 usage();
161 }
162 argc -= optind;
163 argv += optind;
164
165 if (argc != 2)
166 usage();
167
168 pathadj(argv[0], canon_dev);
169 dev = canon_dev;
170
171 pathadj(argv[0], canon_dir);
172 dir = canon_dir;
173
174 #define DEFAULT_ROOTUID -2
175 /*
176 * FILECORE filesystems are not writable.
177 */
178 mntflags |= MNT_RDONLY;
179 if (useuid) args.flags |= FILECOREMNT_USEUID;
180 args.fspec = dev;
181 args.flags = opts;
182
183 if (mount(MOUNT_FILECORE, dir, mntflags, &args, sizeof args) == -1)
184 err(1, "%s on %s", dev, dir);
185 if (mntflags & MNT_GETARGS) {
186 char buf[1024];
187 (void)snprintb(buf, sizeof(buf), FILECOREMNT_BITS, args.flags);
188 printf("uid=%d, gid=%d, flags=%s\n", args.uid, args.gid, buf);
189 }
190 exit(0);
191 }
192
193 static void
usage(void)194 usage(void)
195 {
196 (void)fprintf(stderr,
197 "usage: mount_filecore [-afnR] [-g gid] [-o options] [-u uid] special node\n");
198 exit(1);
199 }
200