mount_smbfs.c revision 95267
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 */ 34#include <sys/param.h> 35#include <sys/stat.h> 36#include <sys/errno.h> 37#include <sys/mount.h> 38 39#include <stdio.h> 40#include <string.h> 41#include <pwd.h> 42#include <grp.h> 43#include <unistd.h> 44#include <ctype.h> 45#include <stdlib.h> 46#include <err.h> 47#include <sysexits.h> 48 49#include <cflib.h> 50 51#include <netsmb/smb.h> 52#include <netsmb/smb_conn.h> 53#include <netsmb/smb_lib.h> 54 55#include <fs/smbfs/smbfs.h> 56 57#include "mntopts.h" 58 59static char mount_point[MAXPATHLEN + 1]; 60static void usage(void); 61 62static struct mntopt mopts[] = { 63 MOPT_STDOPTS, 64 { NULL, 0, 0, 0 } 65}; 66 67 68int 69main(int argc, char *argv[]) 70{ 71 struct smb_ctx sctx, *ctx = &sctx; 72 struct smbfs_args mdata; 73 struct stat st; 74#ifdef APPLE 75 extern void dropsuid(); 76 extern int loadsmbvfs(); 77#else 78 struct vfsconf vfc; 79#endif /* APPLE */ 80 char *next; 81 int opt, error, mntflags, caseopt; 82 83 84#ifdef APPLE 85 dropsuid(); 86#endif /* APPLE */ 87 if (argc == 2) { 88 if (strcmp(argv[1], "-h") == 0) { 89 usage(); 90 } else if (strcmp(argv[1], "-v") == 0) { 91 errx(EX_OK, "version %d.%d.%d", SMBFS_VERSION / 100000, 92 (SMBFS_VERSION % 10000) / 1000, 93 (SMBFS_VERSION % 1000) / 100); 94 } 95 } 96 if (argc < 3) 97 usage(); 98 99#ifdef APPLE 100 error = loadsmbvfs(); 101#else 102 error = getvfsbyname(SMBFS_VFSNAME, &vfc); 103 if (error && vfsisloadable(SMBFS_VFSNAME)) { 104 if(vfsload(SMBFS_VFSNAME)) 105 err(EX_OSERR, "vfsload("SMBFS_VFSNAME")"); 106 endvfsent(); 107 error = getvfsbyname(SMBFS_VFSNAME, &vfc); 108 } 109#endif /* APPLE */ 110 if (error) 111 errx(EX_OSERR, "SMB filesystem is not available"); 112 113 if (smb_lib_init() != 0) 114 exit(1); 115 116 mntflags = error = 0; 117 bzero(&mdata, sizeof(mdata)); 118 mdata.uid = mdata.gid = -1; 119 caseopt = SMB_CS_NONE; 120 121 if (smb_ctx_init(ctx, argc, argv, SMBL_SHARE, SMBL_SHARE, SMB_ST_DISK) != 0) 122 exit(1); 123 if (smb_ctx_readrc(ctx) != 0) 124 exit(1); 125 if (smb_rc) 126 rc_close(smb_rc); 127 128 while ((opt = getopt(argc, argv, STDPARAM_OPT"c:d:f:g:l:n:o:u:w:")) != -1) { 129 switch (opt) { 130 case STDPARAM_ARGS: 131 error = smb_ctx_opt(ctx, opt, optarg); 132 if (error) 133 exit(1); 134 break; 135 case 'u': { 136 struct passwd *pwd; 137 138 pwd = isdigit(optarg[0]) ? 139 getpwuid(atoi(optarg)) : getpwnam(optarg); 140 if (pwd == NULL) 141 errx(EX_NOUSER, "unknown user '%s'", optarg); 142 mdata.uid = pwd->pw_uid; 143 break; 144 } 145 case 'g': { 146 struct group *grp; 147 148 grp = isdigit(optarg[0]) ? 149 getgrgid(atoi(optarg)) : getgrnam(optarg); 150 if (grp == NULL) 151 errx(EX_NOUSER, "unknown group '%s'", optarg); 152 mdata.gid = grp->gr_gid; 153 break; 154 } 155 case 'd': 156 errno = 0; 157 mdata.dir_mode = strtol(optarg, &next, 8); 158 if (errno || *next != 0) 159 errx(EX_DATAERR, "invalid value for directory mode"); 160 break; 161 case 'f': 162 errno = 0; 163 mdata.file_mode = strtol(optarg, &next, 8); 164 if (errno || *next != 0) 165 errx(EX_DATAERR, "invalid value for file mode"); 166 break; 167 case '?': 168 usage(); 169 /*NOTREACHED*/ 170 case 'n': { 171 char *inp, *nsp; 172 173 nsp = inp = optarg; 174 while ((nsp = strsep(&inp, ",;:")) != NULL) { 175 if (strcasecmp(nsp, "LONG") == 0) 176 mdata.flags |= SMBFS_MOUNT_NO_LONG; 177 else 178 errx(EX_DATAERR, "unknown suboption '%s'", nsp); 179 } 180 break; 181 }; 182 case 'o': 183 getmntopts(optarg, mopts, &mntflags, 0); 184 break; 185 case 'c': 186 switch (optarg[0]) { 187 case 'l': 188 caseopt |= SMB_CS_LOWER; 189 break; 190 case 'u': 191 caseopt |= SMB_CS_UPPER; 192 break; 193 default: 194 errx(EX_DATAERR, "invalid suboption '%c' for -c", 195 optarg[0]); 196 } 197 break; 198 default: 199 usage(); 200 } 201 } 202 203 if (optind == argc - 2) 204 optind++; 205 206 if (optind != argc - 1) 207 usage(); 208 realpath(argv[optind], mount_point); 209 210 if (stat(mount_point, &st) == -1) 211 err(EX_OSERR, "could not find mount point %s", mount_point); 212 if (!S_ISDIR(st.st_mode)) { 213 errno = ENOTDIR; 214 err(EX_OSERR, "can't mount on %s", mount_point); 215 } 216/* 217 if (smb_getextattr(mount_point, &einfo) == 0) 218 errx(EX_OSERR, "can't mount on %s twice", mount_point); 219*/ 220 if (mdata.uid == (uid_t)-1) 221 mdata.uid = st.st_uid; 222 if (mdata.gid == (gid_t)-1) 223 mdata.gid = st.st_gid; 224 if (mdata.file_mode == 0 ) 225 mdata.file_mode = st.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO); 226 if (mdata.dir_mode == 0) { 227 mdata.dir_mode = mdata.file_mode; 228 if (mdata.dir_mode & S_IRUSR) 229 mdata.dir_mode |= S_IXUSR; 230 if (mdata.dir_mode & S_IRGRP) 231 mdata.dir_mode |= S_IXGRP; 232 if (mdata.dir_mode & S_IROTH) 233 mdata.dir_mode |= S_IXOTH; 234 } 235 /* 236 * For now, let connection be private for this mount 237 */ 238 ctx->ct_ssn.ioc_opt |= SMBVOPT_PRIVATE; 239 ctx->ct_ssn.ioc_owner = ctx->ct_sh.ioc_owner = 0; /* root */ 240 ctx->ct_ssn.ioc_group = ctx->ct_sh.ioc_group = mdata.gid; 241 opt = 0; 242 if (mdata.dir_mode & S_IXGRP) 243 opt |= SMBM_EXECGRP; 244 if (mdata.dir_mode & S_IXOTH) 245 opt |= SMBM_EXECOTH; 246 ctx->ct_ssn.ioc_rights |= opt; 247 ctx->ct_sh.ioc_rights |= opt; 248 error = smb_ctx_resolve(ctx); 249 if (error) 250 exit(1); 251 error = smb_ctx_lookup(ctx, SMBL_SHARE, SMBLK_CREATE); 252 if (error) { 253 exit(1); 254 } 255 strcpy(mdata.mount_point,mount_point); 256 mdata.version = SMBFS_VERSION; 257 mdata.dev = ctx->ct_fd; 258 mdata.caseopt = caseopt; 259 error = mount(SMBFS_VFSNAME, mdata.mount_point, mntflags, (void*)&mdata); 260 smb_ctx_done(ctx); 261 if (error) { 262 smb_error("mount error: %s", error, mdata.mount_point); 263 exit(1); 264 } 265 return 0; 266} 267 268static void 269usage(void) 270{ 271 fprintf(stderr, "%s\n%s\n%s\n%s\n", 272 "usage: mount_smbfs [-E cs1:cs2] [-I host] [-L locale] [-M crights:srights]", 273 " [-N] [-O cowner:cgroup/sowner:sgroup] [-R retrycount]", 274 " [-T timeout] [-W workgroup] [-c case] [-d mode] [-f mode]", 275 " [-g gid] [-n opt] [-u uid] //user@server/share node"); 276 277 exit (1); 278} 279