1 /* $NetBSD: mount_udf.c,v 1.13 2009/02/08 19:28:49 reinoud 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 1.13 2009/02/08 19:28:49 reinoud 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 */ 68 static 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 */ 79 static void usage(void) __dead; 80 81 82 /* code */ 83 84 static void 85 usage(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 94 int 95 main(int argc, char **argv) 96 { 97 98 setprogname(argv[0]); 99 return mount_udf(argc, argv); 100 } 101 #endif 102 103 104 /* main routine */ 105 void 106 mount_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 } 187 188 int 189 mount_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