mount_ntfs.c revision 129660
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: head/sbin/mount_ntfs/mount_ntfs.c 129660 2004-05-24 13:39:06Z stefanf $ 32 * 33 */ 34 35#include <sys/cdefs.h> 36#include <sys/param.h> 37#define NTFS 38#include <sys/mount.h> 39#include <sys/stat.h> 40#include <sys/module.h> 41#include <sys/iconv.h> 42#include <sys/linker.h> 43#include <fs/ntfs/ntfsmount.h> 44#include <ctype.h> 45#include <err.h> 46#include <grp.h> 47#include <pwd.h> 48#include <stdio.h> 49#include <stdlib.h> 50#include <string.h> 51#include <sysexits.h> 52#include <unistd.h> 53#include <libutil.h> 54 55#include "mntopts.h" 56 57#define TRANSITION_PERIOD_HACK 58 59static struct mntopt mopts[] = { 60 MOPT_STDOPTS, 61 { NULL } 62}; 63 64static gid_t a_gid(char *); 65static uid_t a_uid(char *); 66static mode_t a_mask(char *); 67static void usage(void) __dead2; 68 69static int set_charset(struct ntfs_args *); 70 71int 72main(argc, argv) 73 int argc; 74 char **argv; 75{ 76 struct ntfs_args args; 77 struct stat sb; 78 int c, mntflags, set_gid, set_uid, set_mask; 79 char *dev, *dir, mntpath[MAXPATHLEN]; 80 81 mntflags = set_gid = set_uid = set_mask = 0; 82 (void)memset(&args, '\0', sizeof(args)); 83 args.cs_ntfs = NULL; 84 args.cs_local = NULL; 85 86#ifdef TRANSITION_PERIOD_HACK 87 while ((c = getopt(argc, argv, "aiu:g:m:o:C:W:")) != -1) { 88#else 89 while ((c = getopt(argc, argv, "aiu:g:m:o:C:")) != -1) { 90#endif 91 switch (c) { 92 case 'u': 93 args.uid = a_uid(optarg); 94 set_uid = 1; 95 break; 96 case 'g': 97 args.gid = a_gid(optarg); 98 set_gid = 1; 99 break; 100 case 'm': 101 args.mode = a_mask(optarg); 102 set_mask = 1; 103 break; 104 case 'i': 105 args.flag |= NTFS_MFLAG_CASEINS; 106 break; 107 case 'a': 108 args.flag |= NTFS_MFLAG_ALLNAMES; 109 break; 110 case 'o': 111 getmntopts(optarg, mopts, &mntflags, 0); 112 break; 113 case 'C': 114 args.cs_local = malloc(ICONV_CSNMAXLEN); 115 if (args.cs_local == NULL) 116 err(EX_OSERR, "malloc()"); 117 strncpy(args.cs_local, 118 kiconv_quirkcs(optarg, KICONV_VENDOR_MICSFT), 119 ICONV_CSNMAXLEN); 120 break; 121#ifdef TRANSITION_PERIOD_HACK 122 case 'W': 123 args.cs_local = malloc(ICONV_CSNMAXLEN); 124 if (args.cs_local == NULL) 125 err(EX_OSERR, "malloc()"); 126 if (strcmp(optarg, "iso22dos") == 0) { 127 strcpy(args.cs_local, "ISO8859-2"); 128 } else if (strcmp(optarg, "iso72dos") == 0) { 129 strcpy(args.cs_local, "ISO8859-7"); 130 } else if (strcmp(optarg, "koi2dos") == 0) { 131 strcpy(args.cs_local, "KOI8-R"); 132 } else if (strcmp(optarg, "koi8u2dos") == 0) { 133 strcpy(args.cs_local, "KOI8-U"); 134 } else { 135 err(EX_NOINPUT, "%s", optarg); 136 } 137 break; 138#endif /* TRANSITION_PERIOD_HACK */ 139 case '?': 140 default: 141 usage(); 142 break; 143 } 144 } 145 146 if (optind + 2 != argc) 147 usage(); 148 149 dev = argv[optind]; 150 dir = argv[optind + 1]; 151 152 if (args.cs_local) { 153 if (set_charset(&args) == -1) 154 err(EX_OSERR, "ntfs_iconv"); 155 args.flag |= NTFS_MFLAG_KICONV; 156 /* 157 * XXX 158 * Force to be MNT_RDONLY, 159 * since only reading is supported right now, 160 */ 161 mntflags |= MNT_RDONLY; 162 } 163 164 /* 165 * Resolve the mountpoint with realpath(3) and remove unnecessary 166 * slashes from the devicename if there are any. 167 */ 168 (void)checkpath(dir, mntpath); 169 (void)rmslashes(dev, dev); 170 171 args.fspec = dev; 172 args.export.ex_root = 65534; /* unchecked anyway on DOS fs */ 173 if (mntflags & MNT_RDONLY) 174 args.export.ex_flags = MNT_EXRDONLY; 175 else 176 args.export.ex_flags = 0; 177 if (!set_gid || !set_uid || !set_mask) { 178 if (stat(mntpath, &sb) == -1) 179 err(EX_OSERR, "stat %s", mntpath); 180 181 if (!set_uid) 182 args.uid = sb.st_uid; 183 if (!set_gid) 184 args.gid = sb.st_gid; 185 if (!set_mask) 186 args.mode = sb.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO); 187 } 188 189 if (mount("ntfs", mntpath, mntflags, &args) < 0) 190 err(EX_OSERR, "%s", dev); 191 192 exit (0); 193} 194 195gid_t 196a_gid(s) 197 char *s; 198{ 199 struct group *gr; 200 char *gname; 201 gid_t gid; 202 203 if ((gr = getgrnam(s)) != NULL) 204 gid = gr->gr_gid; 205 else { 206 for (gname = s; *s && isdigit(*s); ++s); 207 if (!*s) 208 gid = atoi(gname); 209 else 210 errx(EX_NOUSER, "unknown group id: %s", gname); 211 } 212 return (gid); 213} 214 215uid_t 216a_uid(s) 217 char *s; 218{ 219 struct passwd *pw; 220 char *uname; 221 uid_t uid; 222 223 if ((pw = getpwnam(s)) != NULL) 224 uid = pw->pw_uid; 225 else { 226 for (uname = s; *s && isdigit(*s); ++s); 227 if (!*s) 228 uid = atoi(uname); 229 else 230 errx(EX_NOUSER, "unknown user id: %s", uname); 231 } 232 return (uid); 233} 234 235mode_t 236a_mask(s) 237 char *s; 238{ 239 int done, rv=0; 240 char *ep; 241 242 done = 0; 243 if (*s >= '0' && *s <= '7') { 244 done = 1; 245 rv = strtol(optarg, &ep, 8); 246 } 247 if (!done || rv < 0 || *ep) 248 errx(EX_USAGE, "invalid file mode: %s", s); 249 return (rv); 250} 251 252void 253usage() 254{ 255#ifdef TRANSITION_PERIOD_HACK 256 fprintf(stderr, "%s\n%s\n", 257 "usage: mount_ntfs [-a] [-i] [-u user] [-g group] [-m mask]", 258 " [-C charset] [-W u2wtable] bdev dir"); 259#else 260 fprintf(stderr, "usage: mount_ntfs [-a] [-i] [-u user] [-g group] [-m mask] [-C charset] bdev dir\n"); 261#endif 262 exit(EX_USAGE); 263} 264 265int 266set_charset(struct ntfs_args *pargs) 267{ 268 int error; 269 270 if (modfind("ntfs_iconv") < 0) 271 if (kldload("ntfs_iconv") < 0 || modfind("ntfs_iconv") < 0) { 272 warnx( "cannot find or load \"ntfs_iconv\" kernel module"); 273 return (-1); 274 } 275 276 if ((pargs->cs_ntfs = malloc(ICONV_CSNMAXLEN)) == NULL) 277 return (-1); 278 strncpy(pargs->cs_ntfs, ENCODING_UNICODE, ICONV_CSNMAXLEN); 279 error = kiconv_add_xlat16_cspairs(pargs->cs_ntfs, pargs->cs_local); 280 if (error) 281 return (-1); 282 283 return (0); 284} 285