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 #include <mntopts.h> 51 52 #include <cflib.h> 53 54 #include <netsmb/smb.h> 55 #include <netsmb/smb_conn.h> 56 #include <netsmb/smb_lib.h> 57 58 #include <fs/smbfs/smbfs.h> 59 60 static char mount_point[MAXPATHLEN + 1]; 61 static void usage(void); 62 63 static struct mntopt mopts[] = { 64 MOPT_STDOPTS, 65 MOPT_END 66 }; 67 68 static char smbfs_vfsname[] = "smbfs"; 69 70 int 71 main(int argc, char *argv[]) 72 { 73 struct iovec *iov; 74 unsigned int iovlen; 75 struct smb_ctx sctx, *ctx = &sctx; 76 struct stat st; 77 #ifdef APPLE 78 extern void dropsuid(); 79 extern int loadsmbvfs(); 80 #else 81 struct xvfsconf vfc; 82 #endif 83 char *next, *p, *val; 84 int opt, error, mntflags, caseopt, fd; 85 uid_t uid; 86 gid_t gid; 87 mode_t dir_mode, file_mode; 88 char errmsg[255] = { 0 }; 89 90 iov = NULL; 91 iovlen = 0; 92 fd = 0; 93 uid = (uid_t)-1; 94 gid = (gid_t)-1; 95 caseopt = 0; 96 file_mode = 0; 97 dir_mode = 0; 98 99 #ifdef APPLE 100 dropsuid(); 101 #endif 102 if (argc == 2) { 103 if (strcmp(argv[1], "-h") == 0) { 104 usage(); 105 } 106 } 107 if (argc < 3) 108 usage(); 109 110 #ifdef APPLE 111 error = loadsmbvfs(); 112 #else 113 error = getvfsbyname(smbfs_vfsname, &vfc); 114 if (error) { 115 if (kldload(smbfs_vfsname) < 0) 116 err(EX_OSERR, "kldload(%s)", smbfs_vfsname); 117 error = getvfsbyname(smbfs_vfsname, &vfc); 118 } 119 #endif 120 if (error) 121 errx(EX_OSERR, "SMB filesystem is not available"); 122 123 if (smb_lib_init() != 0) 124 exit(1); 125 126 mntflags = error = 0; 127 128 caseopt = SMB_CS_NONE; 129 130 if (smb_ctx_init(ctx, argc, argv, SMBL_SHARE, SMBL_SHARE, SMB_ST_DISK) != 0) 131 exit(1); 132 if (smb_ctx_readrc(ctx) != 0) 133 exit(1); 134 if (smb_rc) 135 rc_close(smb_rc); 136 137 while ((opt = getopt(argc, argv, STDPARAM_OPT"c:d:f:g:l:n:o:u:w:")) != -1) { 138 switch (opt) { 139 case STDPARAM_ARGS: 140 error = smb_ctx_opt(ctx, opt, optarg); 141 if (error) 142 exit(1); 143 break; 144 case 'u': { 145 struct passwd *pwd; 146 147 pwd = isdigit(optarg[0]) ? 148 getpwuid(atoi(optarg)) : getpwnam(optarg); 149 if (pwd == NULL) 150 errx(EX_NOUSER, "unknown user '%s'", optarg); 151 uid = pwd->pw_uid; 152 break; 153 } 154 case 'g': { 155 struct group *grp; 156 157 grp = isdigit(optarg[0]) ? 158 getgrgid(atoi(optarg)) : getgrnam(optarg); 159 if (grp == NULL) 160 errx(EX_NOUSER, "unknown group '%s'", optarg); 161 gid = grp->gr_gid; 162 break; 163 } 164 case 'd': 165 errno = 0; 166 dir_mode = strtol(optarg, &next, 8); 167 if (errno || *next != 0) 168 errx(EX_DATAERR, "invalid value for directory mode"); 169 break; 170 case 'f': 171 errno = 0; 172 file_mode = strtol(optarg, &next, 8); 173 if (errno || *next != 0) 174 errx(EX_DATAERR, "invalid value for file mode"); 175 break; 176 case '?': 177 usage(); 178 /*NOTREACHED*/ 179 case 'n': { 180 char *inp, *nsp; 181 182 nsp = inp = optarg; 183 while ((nsp = strsep(&inp, ",;:")) != NULL) { 184 if (strcasecmp(nsp, "LONG") == 0) { 185 build_iovec(&iov, &iovlen, 186 "nolong", NULL, 0); 187 } else { 188 errx(EX_DATAERR, 189 "unknown suboption '%s'", nsp); 190 } 191 } 192 break; 193 }; 194 case 'o': 195 getmntopts(optarg, mopts, &mntflags, 0); 196 p = strchr(optarg, '='); 197 val = NULL; 198 if (p != NULL) { 199 *p = '\0'; 200 val = p + 1; 201 } 202 build_iovec(&iov, &iovlen, optarg, val, (size_t)-1); 203 break; 204 case 'c': 205 switch (optarg[0]) { 206 case 'l': 207 caseopt |= SMB_CS_LOWER; 208 break; 209 case 'u': 210 caseopt |= SMB_CS_UPPER; 211 break; 212 default: 213 errx(EX_DATAERR, "invalid suboption '%c' for -c", 214 optarg[0]); 215 } 216 break; 217 default: 218 usage(); 219 } 220 } 221 222 if (optind == argc - 2) 223 optind++; 224 225 if (optind != argc - 1) 226 usage(); 227 realpath(argv[optind], mount_point); 228 229 if (stat(mount_point, &st) == -1) 230 err(EX_OSERR, "could not find mount point %s", mount_point); 231 if (!S_ISDIR(st.st_mode)) { 232 errno = ENOTDIR; 233 err(EX_OSERR, "can't mount on %s", mount_point); 234 } 235 /* 236 if (smb_getextattr(mount_point, &einfo) == 0) 237 errx(EX_OSERR, "can't mount on %s twice", mount_point); 238 */ 239 if (uid == (uid_t)-1) 240 uid = st.st_uid; 241 if (gid == (gid_t)-1) 242 gid = st.st_gid; 243 if (file_mode == 0 ) 244 file_mode = st.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO); 245 if (dir_mode == 0) { 246 dir_mode = file_mode; 247 if (dir_mode & S_IRUSR) 248 dir_mode |= S_IXUSR; 249 if (dir_mode & S_IRGRP) 250 dir_mode |= S_IXGRP; 251 if (dir_mode & S_IROTH) 252 dir_mode |= S_IXOTH; 253 } 254 /* 255 * For now, let connection be private for this mount 256 */ 257 ctx->ct_ssn.ioc_opt |= SMBVOPT_PRIVATE; 258 ctx->ct_ssn.ioc_owner = ctx->ct_sh.ioc_owner = 0; /* root */ 259 ctx->ct_ssn.ioc_group = ctx->ct_sh.ioc_group = gid; 260 opt = 0; 261 if (dir_mode & S_IXGRP) 262 opt |= SMBM_EXECGRP; 263 if (dir_mode & S_IXOTH) 264 opt |= SMBM_EXECOTH; 265 ctx->ct_ssn.ioc_rights |= opt; 266 ctx->ct_sh.ioc_rights |= opt; 267 error = smb_ctx_resolve(ctx); 268 if (error) 269 exit(1); 270 error = smb_ctx_lookup(ctx, SMBL_SHARE, SMBLK_CREATE); 271 if (error) { 272 exit(1); 273 } 274 275 fd = ctx->ct_fd; 276 277 build_iovec(&iov, &iovlen, "fstype", strdup("smbfs"), -1); 278 build_iovec(&iov, &iovlen, "fspath", mount_point, -1); 279 build_iovec_argf(&iov, &iovlen, "fd", "%d", fd); 280 build_iovec(&iov, &iovlen, "mountpoint", mount_point, -1); 281 build_iovec_argf(&iov, &iovlen, "uid", "%d", uid); 282 build_iovec_argf(&iov, &iovlen, "gid", "%d", gid); 283 build_iovec_argf(&iov, &iovlen, "file_mode", "%d", file_mode); 284 build_iovec_argf(&iov, &iovlen, "dir_mode", "%d", dir_mode); 285 build_iovec_argf(&iov, &iovlen, "caseopt", "%d", caseopt); 286 build_iovec(&iov, &iovlen, "errmsg", errmsg, sizeof errmsg); 287 288 error = nmount(iov, iovlen, mntflags); 289 smb_ctx_done(ctx); 290 if (error) { 291 smb_error("mount error: %s %s", error, mount_point, errmsg); 292 exit(1); 293 } 294 return 0; 295 } 296 297 static void 298 usage(void) 299 { 300 fprintf(stderr, "%s\n%s\n%s\n%s\n", 301 "usage: mount_smbfs [-E cs1:cs2] [-I host] [-L locale] [-M crights:srights]", 302 " [-N] [-O cowner:cgroup/sowner:sgroup] [-R retrycount]", 303 " [-T timeout] [-W workgroup] [-c case] [-d mode] [-f mode]", 304 " [-g gid] [-n opt] [-u uid] [-U username] //user@server/share node"); 305 306 exit (1); 307 } 308