1 /* 2 * Copyright (c) 2000-2002, Boris Popov 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by Boris Popov. 16 * 4. Neither the name of the author nor the names of any co-contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * $Id: mount_smbfs.c,v 1.17 2002/04/10 04:17:51 bp Exp $ 33 * $FreeBSD$ 34 */ 35 #include <sys/param.h> 36 #include <sys/stat.h> 37 #include <sys/errno.h> 38 #include <sys/linker.h> 39 #include <sys/mount.h> 40 41 #include <stdio.h> 42 #include <string.h> 43 #include <pwd.h> 44 #include <grp.h> 45 #include <unistd.h> 46 #include <ctype.h> 47 #include <stdlib.h> 48 #include <err.h> 49 #include <sysexits.h> 50 51 #include <cflib.h> 52 53 #include <netsmb/smb.h> 54 #include <netsmb/smb_conn.h> 55 #include <netsmb/smb_lib.h> 56 57 #include <fs/smbfs/smbfs.h> 58 59 #include "mntopts.h" 60 61 static char mount_point[MAXPATHLEN + 1]; 62 static void usage(void); 63 64 static struct mntopt mopts[] = { 65 MOPT_STDOPTS, 66 MOPT_END 67 }; 68 69 static char smbfs_vfsname[] = "smbfs"; 70 71 int 72 main(int argc, char *argv[]) 73 { 74 struct iovec *iov; 75 unsigned int iovlen; 76 struct smb_ctx sctx, *ctx = &sctx; 77 struct stat st; 78 #ifdef APPLE 79 extern void dropsuid(); 80 extern int loadsmbvfs(); 81 #else 82 struct xvfsconf vfc; 83 #endif 84 char *next; 85 int opt, error, mntflags, caseopt, dev; 86 uid_t uid; 87 gid_t gid; 88 mode_t dir_mode, file_mode; 89 char errmsg[255] = { 0 }; 90 91 iov = NULL; 92 iovlen = 0; 93 dev = 0; 94 uid = (uid_t)-1; 95 gid = (gid_t)-1; 96 caseopt = 0; 97 file_mode = 0; 98 dir_mode = 0; 99 100 #ifdef APPLE 101 dropsuid(); 102 #endif 103 if (argc == 2) { 104 if (strcmp(argv[1], "-h") == 0) { 105 usage(); 106 } 107 } 108 if (argc < 3) 109 usage(); 110 111 #ifdef APPLE 112 error = loadsmbvfs(); 113 #else 114 error = getvfsbyname(smbfs_vfsname, &vfc); 115 if (error) { 116 if (kldload(smbfs_vfsname) < 0) 117 err(EX_OSERR, "kldload(%s)", smbfs_vfsname); 118 error = getvfsbyname(smbfs_vfsname, &vfc); 119 } 120 #endif 121 if (error) 122 errx(EX_OSERR, "SMB filesystem is not available"); 123 124 if (smb_lib_init() != 0) 125 exit(1); 126 127 mntflags = error = 0; 128 129 caseopt = SMB_CS_NONE; 130 131 if (smb_ctx_init(ctx, argc, argv, SMBL_SHARE, SMBL_SHARE, SMB_ST_DISK) != 0) 132 exit(1); 133 if (smb_ctx_readrc(ctx) != 0) 134 exit(1); 135 if (smb_rc) 136 rc_close(smb_rc); 137 138 while ((opt = getopt(argc, argv, STDPARAM_OPT"c:d:f:g:l:n:o:u:w:")) != -1) { 139 switch (opt) { 140 case STDPARAM_ARGS: 141 error = smb_ctx_opt(ctx, opt, optarg); 142 if (error) 143 exit(1); 144 break; 145 case 'u': { 146 struct passwd *pwd; 147 148 pwd = isdigit(optarg[0]) ? 149 getpwuid(atoi(optarg)) : getpwnam(optarg); 150 if (pwd == NULL) 151 errx(EX_NOUSER, "unknown user '%s'", optarg); 152 uid = pwd->pw_uid; 153 break; 154 } 155 case 'g': { 156 struct group *grp; 157 158 grp = isdigit(optarg[0]) ? 159 getgrgid(atoi(optarg)) : getgrnam(optarg); 160 if (grp == NULL) 161 errx(EX_NOUSER, "unknown group '%s'", optarg); 162 gid = grp->gr_gid; 163 break; 164 } 165 case 'd': 166 errno = 0; 167 dir_mode = strtol(optarg, &next, 8); 168 if (errno || *next != 0) 169 errx(EX_DATAERR, "invalid value for directory mode"); 170 break; 171 case 'f': 172 errno = 0; 173 file_mode = strtol(optarg, &next, 8); 174 if (errno || *next != 0) 175 errx(EX_DATAERR, "invalid value for file mode"); 176 break; 177 case '?': 178 usage(); 179 /*NOTREACHED*/ 180 case 'n': { 181 char *inp, *nsp; 182 183 nsp = inp = optarg; 184 while ((nsp = strsep(&inp, ",;:")) != NULL) { 185 if (strcasecmp(nsp, "LONG") == 0) { 186 build_iovec(&iov, &iovlen, 187 "nolong", NULL, 0); 188 } else { 189 errx(EX_DATAERR, 190 "unknown suboption '%s'", nsp); 191 } 192 } 193 break; 194 }; 195 case 'o': 196 getmntopts(optarg, mopts, &mntflags, 0); 197 break; 198 case 'c': 199 switch (optarg[0]) { 200 case 'l': 201 caseopt |= SMB_CS_LOWER; 202 break; 203 case 'u': 204 caseopt |= SMB_CS_UPPER; 205 break; 206 default: 207 errx(EX_DATAERR, "invalid suboption '%c' for -c", 208 optarg[0]); 209 } 210 break; 211 default: 212 usage(); 213 } 214 } 215 216 if (optind == argc - 2) 217 optind++; 218 219 if (optind != argc - 1) 220 usage(); 221 realpath(argv[optind], mount_point); 222 223 if (stat(mount_point, &st) == -1) 224 err(EX_OSERR, "could not find mount point %s", mount_point); 225 if (!S_ISDIR(st.st_mode)) { 226 errno = ENOTDIR; 227 err(EX_OSERR, "can't mount on %s", mount_point); 228 } 229 /* 230 if (smb_getextattr(mount_point, &einfo) == 0) 231 errx(EX_OSERR, "can't mount on %s twice", mount_point); 232 */ 233 if (uid == (uid_t)-1) 234 uid = st.st_uid; 235 if (gid == (gid_t)-1) 236 gid = st.st_gid; 237 if (file_mode == 0 ) 238 file_mode = st.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO); 239 if (dir_mode == 0) { 240 dir_mode = file_mode; 241 if (dir_mode & S_IRUSR) 242 dir_mode |= S_IXUSR; 243 if (dir_mode & S_IRGRP) 244 dir_mode |= S_IXGRP; 245 if (dir_mode & S_IROTH) 246 dir_mode |= S_IXOTH; 247 } 248 /* 249 * For now, let connection be private for this mount 250 */ 251 ctx->ct_ssn.ioc_opt |= SMBVOPT_PRIVATE; 252 ctx->ct_ssn.ioc_owner = ctx->ct_sh.ioc_owner = 0; /* root */ 253 ctx->ct_ssn.ioc_group = ctx->ct_sh.ioc_group = gid; 254 opt = 0; 255 if (dir_mode & S_IXGRP) 256 opt |= SMBM_EXECGRP; 257 if (dir_mode & S_IXOTH) 258 opt |= SMBM_EXECOTH; 259 ctx->ct_ssn.ioc_rights |= opt; 260 ctx->ct_sh.ioc_rights |= opt; 261 error = smb_ctx_resolve(ctx); 262 if (error) 263 exit(1); 264 error = smb_ctx_lookup(ctx, SMBL_SHARE, SMBLK_CREATE); 265 if (error) { 266 exit(1); 267 } 268 269 dev = ctx->ct_fd; 270 271 build_iovec(&iov, &iovlen, "fstype", strdup("smbfs"), -1); 272 build_iovec(&iov, &iovlen, "fspath", mount_point, -1); 273 build_iovec_argf(&iov, &iovlen, "dev", "%d", dev); 274 build_iovec(&iov, &iovlen, "mountpoint", mount_point, -1); 275 build_iovec_argf(&iov, &iovlen, "uid", "%d", uid); 276 build_iovec_argf(&iov, &iovlen, "gid", "%d", gid); 277 build_iovec_argf(&iov, &iovlen, "file_mode", "%d", file_mode); 278 build_iovec_argf(&iov, &iovlen, "dir_mode", "%d", dir_mode); 279 build_iovec_argf(&iov, &iovlen, "caseopt", "%d", caseopt); 280 build_iovec(&iov, &iovlen, "errmsg", errmsg, sizeof errmsg); 281 282 error = nmount(iov, iovlen, mntflags); 283 smb_ctx_done(ctx); 284 if (error) { 285 smb_error("mount error: %s %s", error, mount_point, errmsg); 286 exit(1); 287 } 288 return 0; 289 } 290 291 static void 292 usage(void) 293 { 294 fprintf(stderr, "%s\n%s\n%s\n%s\n", 295 "usage: mount_smbfs [-E cs1:cs2] [-I host] [-L locale] [-M crights:srights]", 296 " [-N] [-O cowner:cgroup/sowner:sgroup] [-R retrycount]", 297 " [-T timeout] [-W workgroup] [-c case] [-d mode] [-f mode]", 298 " [-g gid] [-n opt] [-u uid] [-U username] //user@server/share node"); 299 300 exit (1); 301 } 302