| 1 | /* |
| 2 | * Copyright (c) 1980, 1989 The Regents of the University of California. |
| 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 the University of |
| 16 | * California, Berkeley and its contributors. |
| 17 | * 4. Neither the name of the University nor the names of its contributors |
| 18 | * may be used to endorse or promote products derived from this software |
| 19 | * without specific prior written permission. |
| 20 | * |
| 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 31 | * SUCH DAMAGE. |
| 32 | */ |
| 33 | |
| 34 | #ifndef lint |
| 35 | char copyright[] = |
| 36 | "@(#) Copyright (c) 1980, 1989 The Regents of the University of California.\n\ |
| 37 | All rights reserved.\n"; |
| 38 | #endif /* not lint */ |
| 39 | |
| 40 | #ifndef lint |
| 41 | static char sccsid[] = "@(#)mount.c 5.44 (Berkeley) 2/26/91"; |
| 42 | #endif /* not lint */ |
| 43 | |
| 44 | #include <sys/param.h> |
| 45 | #include <sys/file.h> |
| 46 | #include <sys/time.h> |
| 47 | #include <sys/wait.h> |
| 48 | #include <sys/errno.h> |
| 49 | #include <sys/signal.h> |
| 50 | #include <sys/mount.h> |
| 51 | #ifdef NFS |
| 52 | #include <sys/socket.h> |
| 53 | #include <sys/socketvar.h> |
| 54 | #include <netdb.h> |
| 55 | #include <rpc/rpc.h> |
| 56 | #include <rpc/pmap_clnt.h> |
| 57 | #include <rpc/pmap_prot.h> |
| 58 | #include <nfs/rpcv2.h> |
| 59 | #include <nfs/nfsv2.h> |
| 60 | #include <nfs/nfs.h> |
| 61 | #endif |
| 62 | #include <fstab.h> |
| 63 | #include <string.h> |
| 64 | #include <stdio.h> |
| 65 | #include <stdlib.h> |
| 66 | #include "pathnames.h" |
| 67 | |
| 68 | #define DEFAULT_ROOTUID -2 |
| 69 | |
| 70 | #define BADTYPE(type) \ |
| 71 | (strcmp(type, FSTAB_RO) && strcmp(type, FSTAB_RW) && \ |
| 72 | strcmp(type, FSTAB_RQ)) |
| 73 | #define SETTYPE(type) \ |
| 74 | (!strcmp(type, FSTAB_RW) || !strcmp(type, FSTAB_RQ)) |
| 75 | |
| 76 | int fake, verbose, updateflg, mnttype; |
| 77 | char *mntname, **envp; |
| 78 | char **vfslist, **makevfslist(); |
| 79 | static void prmount(); |
| 80 | |
| 81 | #ifdef NFS |
| 82 | int xdr_dir(), xdr_fh(); |
| 83 | char *getnfsargs(); |
| 84 | struct nfs_args nfsdefargs = { |
| 85 | (struct sockaddr *)0, |
| 86 | SOCK_DGRAM, |
| 87 | 0, |
| 88 | (nfsv2fh_t *)0, |
| 89 | 0, |
| 90 | NFS_WSIZE, |
| 91 | NFS_RSIZE, |
| 92 | NFS_TIMEO, |
| 93 | NFS_RETRANS, |
| 94 | (char *)0, |
| 95 | }; |
| 96 | |
| 97 | struct nfhret { |
| 98 | u_long stat; |
| 99 | nfsv2fh_t nfh; |
| 100 | }; |
| 101 | #define DEF_RETRY 10000 |
| 102 | int retrycnt; |
| 103 | #define BGRND 1 |
| 104 | #define ISBGRND 2 |
| 105 | int opflags = 0; |
| 106 | #endif |
| 107 | |
| 108 | main(argc, argv, arge) |
| 109 | int argc; |
| 110 | char **argv; |
| 111 | char **arge; |
| 112 | { |
| 113 | extern char *optarg; |
| 114 | extern int optind; |
| 115 | register struct fstab *fs; |
| 116 | int all, ch, rval, flags, ret, pid, i; |
| 117 | long mntsize; |
| 118 | struct statfs *mntbuf, *getmntpt(); |
| 119 | char *type, *options = NULL; |
| 120 | FILE *pidfile; |
| 121 | |
| 122 | envp = arge; |
| 123 | all = 0; |
| 124 | type = NULL; |
| 125 | mnttype = MOUNT_UFS; |
| 126 | mntname = "ufs"; |
| 127 | while ((ch = getopt(argc, argv, "afrwuvt:o:")) != EOF) |
| 128 | switch((char)ch) { |
| 129 | case 'a': |
| 130 | all = 1; |
| 131 | break; |
| 132 | case 'f': |
| 133 | fake = 1; |
| 134 | break; |
| 135 | case 'r': |
| 136 | type = FSTAB_RO; |
| 137 | break; |
| 138 | case 'u': |
| 139 | updateflg = MNT_UPDATE; |
| 140 | break; |
| 141 | case 'v': |
| 142 | verbose = 1; |
| 143 | break; |
| 144 | case 'w': |
| 145 | type = FSTAB_RW; |
| 146 | break; |
| 147 | case 'o': |
| 148 | options = optarg; |
| 149 | break; |
| 150 | case 't': |
| 151 | vfslist = makevfslist(optarg); |
| 152 | mnttype = getmnttype(optarg); |
| 153 | break; |
| 154 | case '?': |
| 155 | default: |
| 156 | usage(); |
| 157 | /* NOTREACHED */ |
| 158 | } |
| 159 | argc -= optind; |
| 160 | argv += optind; |
| 161 | |
| 162 | /* NOSTRICT */ |
| 163 | |
| 164 | if (all) { |
| 165 | rval = 0; |
| 166 | while (fs = getfsent()) { |
| 167 | if (BADTYPE(fs->fs_type)) |
| 168 | continue; |
| 169 | if (badvfsname(fs->fs_vfstype, vfslist)) |
| 170 | continue; |
| 171 | /* `/' is special, it's always mounted */ |
| 172 | if (!strcmp(fs->fs_file, "/")) |
| 173 | flags = MNT_UPDATE; |
| 174 | else |
| 175 | flags = updateflg; |
| 176 | mnttype = getmnttype(fs->fs_vfstype); |
| 177 | rval |= mountfs(fs->fs_spec, fs->fs_file, flags, |
| 178 | type, options, fs->fs_mntops); |
| 179 | } |
| 180 | exit(rval); |
| 181 | } |
| 182 | |
| 183 | if (argc == 0) { |
| 184 | if (verbose || fake || type) |
| 185 | usage(); |
| 186 | if ((mntsize = getmntinfo(&mntbuf, MNT_NOWAIT)) == 0) { |
| 187 | (void) fprintf(stderr, |
| 188 | "mount: cannot get mount information\n"); |
| 189 | exit(1); |
| 190 | } |
| 191 | for (i = 0; i < mntsize; i++) { |
| 192 | if (badvfstype(mntbuf[i].f_type, vfslist)) |
| 193 | continue; |
| 194 | prmount(mntbuf[i].f_mntfromname, mntbuf[i].f_mntonname, |
| 195 | mntbuf[i].f_flags); |
| 196 | } |
| 197 | exit(0); |
| 198 | } |
| 199 | |
| 200 | if (argc == 1 && updateflg) { |
| 201 | if ((mntbuf = getmntpt(*argv)) == NULL) { |
| 202 | (void) fprintf(stderr, |
| 203 | "mount: unknown special file or file system %s.\n", |
| 204 | *argv); |
| 205 | exit(1); |
| 206 | } |
| 207 | mnttype = mntbuf->f_type; |
| 208 | #ifndef LETS_GET_SMALL |
| 209 | if (!strcmp(mntbuf->f_mntfromname, "root_device")) { |
| 210 | fs = getfsfile("/"); |
| 211 | strcpy(mntbuf->f_mntfromname, fs->fs_spec); |
| 212 | } |
| 213 | #endif |
| 214 | ret = mountfs(mntbuf->f_mntfromname, mntbuf->f_mntonname, |
| 215 | updateflg, type, options, (char *)NULL); |
| 216 | } else if (argc == 1) { |
| 217 | #ifndef LETS_GET_SMALL |
| 218 | if (!(fs = getfsfile(*argv)) && !(fs = getfsspec(*argv))) { |
| 219 | (void) fprintf(stderr, |
| 220 | "mount: unknown special file or file system %s.\n", |
| 221 | *argv); |
| 222 | exit(1); |
| 223 | } |
| 224 | if (BADTYPE(fs->fs_type)) { |
| 225 | (void) fprintf(stderr, |
| 226 | "mount: %s has unknown file system type.\n", *argv); |
| 227 | exit(1); |
| 228 | } |
| 229 | mnttype = getmnttype(fs->fs_vfstype); |
| 230 | ret = mountfs(fs->fs_spec, fs->fs_file, updateflg, |
| 231 | type, options, fs->fs_mntops); |
| 232 | #else |
| 233 | exit(1); |
| 234 | #endif |
| 235 | } else if (argc != 2) { |
| 236 | usage(); |
| 237 | ret = 1; |
| 238 | } else { |
| 239 | /* |
| 240 | * If -t flag has not been specified, and spec |
| 241 | * contains either a ':' or a '@' then assume that |
| 242 | * an NFS filesystem is being specified ala Sun. |
| 243 | */ |
| 244 | if (vfslist == (char **)0 && |
| 245 | (index(argv[0], ':') || index(argv[0], '@'))) |
| 246 | mnttype = MOUNT_NFS; |
| 247 | ret = mountfs(argv[0], argv[1], updateflg, type, options, |
| 248 | (char *)NULL); |
| 249 | } |
| 250 | #ifndef LETS_GET_SMALL |
| 251 | if ((pidfile = fopen(_PATH_MOUNTDPID, "r")) != NULL) { |
| 252 | pid = 0; |
| 253 | fscanf(pidfile, "%d", &pid); |
| 254 | fclose(pidfile); |
| 255 | if (pid > 0) |
| 256 | kill(pid, SIGHUP); |
| 257 | } |
| 258 | #endif |
| 259 | exit (ret); |
| 260 | } |
| 261 | |
| 262 | mountfs(spec, name, flags, type, options, mntopts) |
| 263 | char *spec, *name, *type, *options, *mntopts; |
| 264 | int flags; |
| 265 | { |
| 266 | union wait status; |
| 267 | pid_t pid; |
| 268 | int argc, i; |
| 269 | struct ufs_args args; |
| 270 | #ifdef NFS |
| 271 | struct nfs_args nfsargs; |
| 272 | #endif |
| 273 | char *argp, *argv[50]; |
| 274 | char execname[MAXPATHLEN + 1], flagval[12]; |
| 275 | |
| 276 | #ifdef NFS |
| 277 | nfsargs = nfsdefargs; |
| 278 | #endif |
| 279 | if (mntopts) |
| 280 | getstdopts(mntopts, &flags); |
| 281 | if (options) |
| 282 | getstdopts(options, &flags); |
| 283 | if (type) |
| 284 | getstdopts(type, &flags); |
| 285 | switch (mnttype) { |
| 286 | case MOUNT_UFS: |
| 287 | if (mntopts) |
| 288 | getufsopts(mntopts, &flags); |
| 289 | if (options) |
| 290 | getufsopts(options, &flags); |
| 291 | args.fspec = spec; |
| 292 | args.exroot = DEFAULT_ROOTUID; |
| 293 | if (flags & MNT_RDONLY) |
| 294 | args.exflags = MNT_EXRDONLY; |
| 295 | else |
| 296 | args.exflags = 0; |
| 297 | argp = (caddr_t)&args; |
| 298 | break; |
| 299 | |
| 300 | #ifdef NFS |
| 301 | case MOUNT_NFS: |
| 302 | retrycnt = DEF_RETRY; |
| 303 | if (mntopts) |
| 304 | getnfsopts(mntopts, &nfsargs, &opflags, &retrycnt); |
| 305 | if (options) |
| 306 | getnfsopts(options, &nfsargs, &opflags, &retrycnt); |
| 307 | if (argp = getnfsargs(spec, &nfsargs)) |
| 308 | break; |
| 309 | return (1); |
| 310 | #endif /* NFS */ |
| 311 | |
| 312 | #ifndef LETS_GET_SMALL |
| 313 | case MOUNT_MFS: |
| 314 | default: |
| 315 | argv[0] = mntname; |
| 316 | argc = 1; |
| 317 | if (flags) { |
| 318 | argv[argc++] = "-F"; |
| 319 | sprintf(flagval, "%d", flags); |
| 320 | argv[argc++] = flagval; |
| 321 | } |
| 322 | if (mntopts) |
| 323 | argc += getexecopts(mntopts, &argv[argc]); |
| 324 | if (options) |
| 325 | argc += getexecopts(options, &argv[argc]); |
| 326 | argv[argc++] = spec; |
| 327 | argv[argc++] = name; |
| 328 | argv[argc++] = NULL; |
| 329 | sprintf(execname, "%s/mount_%s", _PATH_EXECDIR, mntname); |
| 330 | if (verbose) { |
| 331 | (void)printf("exec: %s", execname); |
| 332 | for (i = 1; i < argc - 1; i++) |
| 333 | (void)printf(" %s", argv[i]); |
| 334 | (void)printf("\n"); |
| 335 | } |
| 336 | if (fake) |
| 337 | break; |
| 338 | if (pid = vfork()) { |
| 339 | if (pid == -1) { |
| 340 | perror("mount: vfork starting file system"); |
| 341 | return (1); |
| 342 | } |
| 343 | if (waitpid(pid, (int *)&status, 0) != -1 && |
| 344 | WIFEXITED(status) && |
| 345 | WEXITSTATUS(status) != 0) |
| 346 | return (WEXITSTATUS(status)); |
| 347 | spec = mntname; |
| 348 | goto out; |
| 349 | } |
| 350 | execve(execname, argv, envp); |
| 351 | (void) fprintf(stderr, "mount: cannot exec %s for %s: ", |
| 352 | execname, name); |
| 353 | perror((char *)NULL); |
| 354 | exit (1); |
| 355 | #endif |
| 356 | /* NOTREACHED */ |
| 357 | |
| 358 | } |
| 359 | if (!fake && mount(mnttype, name, flags, argp)) { |
| 360 | #ifdef NFS |
| 361 | if (opflags & ISBGRND) |
| 362 | exit(1); |
| 363 | #endif |
| 364 | (void) fprintf(stderr, "%s on %s: ", spec, name); |
| 365 | switch (errno) { |
| 366 | case EMFILE: |
| 367 | (void) fprintf(stderr, "Mount table full\n"); |
| 368 | break; |
| 369 | case EINVAL: |
| 370 | if (flags & MNT_UPDATE) |
| 371 | (void) fprintf(stderr, "Specified device %s\n", |
| 372 | "does not match mounted device"); |
| 373 | else if (mnttype == MOUNT_UFS) |
| 374 | (void) fprintf(stderr, "Bogus super block\n"); |
| 375 | else |
| 376 | perror((char *)NULL); |
| 377 | break; |
| 378 | default: |
| 379 | perror((char *)NULL); |
| 380 | break; |
| 381 | } |
| 382 | return(1); |
| 383 | } |
| 384 | |
| 385 | out: |
| 386 | if (verbose) |
| 387 | prmount(spec, name, flags); |
| 388 | |
| 389 | #ifdef NFS |
| 390 | if (opflags & ISBGRND) |
| 391 | exit(1); |
| 392 | #endif |
| 393 | return(0); |
| 394 | } |
| 395 | |
| 396 | static void |
| 397 | prmount(spec, name, flags) |
| 398 | char *spec, *name; |
| 399 | register short flags; |
| 400 | { |
| 401 | register int first; |
| 402 | |
| 403 | #ifdef NFS |
| 404 | if (opflags & ISBGRND) |
| 405 | return; |
| 406 | #endif |
| 407 | (void)printf("%s on %s", spec, name); |
| 408 | if (!(flags & MNT_VISFLAGMASK)) { |
| 409 | (void)printf("\n"); |
| 410 | return; |
| 411 | } |
| 412 | first = 0; |
| 413 | #define PR(msg) (void)printf("%s%s", !first++ ? " (" : ", ", msg) |
| 414 | if (flags & MNT_RDONLY) |
| 415 | PR("read-only"); |
| 416 | if (flags & MNT_NOEXEC) |
| 417 | PR("noexec"); |
| 418 | if (flags & MNT_NOSUID) |
| 419 | PR("nosuid"); |
| 420 | if (flags & MNT_NODEV) |
| 421 | PR("nodev"); |
| 422 | if (flags & MNT_SYNCHRONOUS) |
| 423 | PR("synchronous"); |
| 424 | if (flags & MNT_QUOTA) |
| 425 | PR("with quotas"); |
| 426 | if (flags & MNT_LOCAL) |
| 427 | PR("local"); |
| 428 | if (flags & MNT_EXPORTED) |
| 429 | if (flags & MNT_EXRDONLY) |
| 430 | PR("NFS exported read-only"); |
| 431 | else |
| 432 | PR("NFS exported"); |
| 433 | (void)printf(")\n"); |
| 434 | } |
| 435 | |
| 436 | getmnttype(fstype) |
| 437 | char *fstype; |
| 438 | { |
| 439 | |
| 440 | mntname = fstype; |
| 441 | if (!strcmp(fstype, "ufs")) |
| 442 | return (MOUNT_UFS); |
| 443 | if (!strcmp(fstype, "nfs")) |
| 444 | return (MOUNT_NFS); |
| 445 | if (!strcmp(fstype, "mfs")) |
| 446 | return (MOUNT_MFS); |
| 447 | return (0); |
| 448 | } |
| 449 | |
| 450 | usage() |
| 451 | { |
| 452 | |
| 453 | (void) fprintf(stderr, |
| 454 | "usage:\n mount %s %s\n mount %s\n mount %s\n", |
| 455 | "[ -frwu ] [ -t nfs | ufs | external_type ]", |
| 456 | "[ -o options ] special node", |
| 457 | "[ -afrwu ] [ -t nfs | ufs | external_type ]", |
| 458 | "[ -frwu ] special | node"); |
| 459 | exit(1); |
| 460 | } |
| 461 | |
| 462 | getstdopts(options, flagp) |
| 463 | char *options; |
| 464 | int *flagp; |
| 465 | { |
| 466 | register char *opt; |
| 467 | int negative; |
| 468 | char optbuf[BUFSIZ]; |
| 469 | |
| 470 | (void)strcpy(optbuf, options); |
| 471 | for (opt = strtok(optbuf, ","); opt; opt = strtok((char *)NULL, ",")) { |
| 472 | if (opt[0] == 'n' && opt[1] == 'o') { |
| 473 | negative++; |
| 474 | opt += 2; |
| 475 | } else { |
| 476 | negative = 0; |
| 477 | } |
| 478 | if (!negative && !strcasecmp(opt, FSTAB_RO)) { |
| 479 | *flagp |= MNT_RDONLY; |
| 480 | continue; |
| 481 | } |
| 482 | if (!negative && !strcasecmp(opt, FSTAB_RW)) { |
| 483 | *flagp &= ~MNT_RDONLY; |
| 484 | continue; |
| 485 | } |
| 486 | if (!strcasecmp(opt, "exec")) { |
| 487 | if (negative) |
| 488 | *flagp |= MNT_NOEXEC; |
| 489 | else |
| 490 | *flagp &= ~MNT_NOEXEC; |
| 491 | continue; |
| 492 | } |
| 493 | if (!strcasecmp(opt, "suid")) { |
| 494 | if (negative) |
| 495 | *flagp |= MNT_NOSUID; |
| 496 | else |
| 497 | *flagp &= ~MNT_NOSUID; |
| 498 | continue; |
| 499 | } |
| 500 | if (!strcasecmp(opt, "dev")) { |
| 501 | if (negative) |
| 502 | *flagp |= MNT_NODEV; |
| 503 | else |
| 504 | *flagp &= ~MNT_NODEV; |
| 505 | continue; |
| 506 | } |
| 507 | if (!strcasecmp(opt, "synchronous")) { |
| 508 | if (!negative) |
| 509 | *flagp |= MNT_SYNCHRONOUS; |
| 510 | else |
| 511 | *flagp &= ~MNT_SYNCHRONOUS; |
| 512 | continue; |
| 513 | } |
| 514 | } |
| 515 | } |
| 516 | |
| 517 | /* ARGSUSED */ |
| 518 | getufsopts(options, flagp) |
| 519 | char *options; |
| 520 | int *flagp; |
| 521 | { |
| 522 | return; |
| 523 | } |
| 524 | |
| 525 | getexecopts(options, argv) |
| 526 | char *options; |
| 527 | char **argv; |
| 528 | { |
| 529 | register int argc = 0; |
| 530 | register char *opt; |
| 531 | |
| 532 | for (opt = strtok(options, ","); opt; opt = strtok((char *)NULL, ",")) { |
| 533 | if (opt[0] != '-') |
| 534 | continue; |
| 535 | argv[argc++] = opt; |
| 536 | if (opt[2] == '\0' || opt[2] != '=') |
| 537 | continue; |
| 538 | opt[2] = '\0'; |
| 539 | argv[argc++] = &opt[3]; |
| 540 | } |
| 541 | return (argc); |
| 542 | } |
| 543 | |
| 544 | struct statfs * |
| 545 | getmntpt(name) |
| 546 | char *name; |
| 547 | { |
| 548 | long mntsize; |
| 549 | register long i; |
| 550 | struct statfs *mntbuf; |
| 551 | |
| 552 | mntsize = getmntinfo(&mntbuf, MNT_NOWAIT); |
| 553 | for (i = 0; i < mntsize; i++) { |
| 554 | if (!strcmp(mntbuf[i].f_mntfromname, name) || |
| 555 | !strcmp(mntbuf[i].f_mntonname, name)) |
| 556 | return (&mntbuf[i]); |
| 557 | } |
| 558 | return ((struct statfs *)0); |
| 559 | } |
| 560 | |
| 561 | static int skipvfs; |
| 562 | |
| 563 | badvfstype(vfstype, vfslist) |
| 564 | short vfstype; |
| 565 | char **vfslist; |
| 566 | { |
| 567 | |
| 568 | if (vfslist == 0) |
| 569 | return(0); |
| 570 | while (*vfslist) { |
| 571 | if (vfstype == getmnttype(*vfslist)) |
| 572 | return(skipvfs); |
| 573 | vfslist++; |
| 574 | } |
| 575 | return (!skipvfs); |
| 576 | } |
| 577 | |
| 578 | badvfsname(vfsname, vfslist) |
| 579 | char *vfsname; |
| 580 | char **vfslist; |
| 581 | { |
| 582 | |
| 583 | if (vfslist == 0) |
| 584 | return(0); |
| 585 | while (*vfslist) { |
| 586 | if (strcmp(vfsname, *vfslist) == 0) |
| 587 | return(skipvfs); |
| 588 | vfslist++; |
| 589 | } |
| 590 | return (!skipvfs); |
| 591 | } |
| 592 | |
| 593 | char ** |
| 594 | makevfslist(fslist) |
| 595 | char *fslist; |
| 596 | { |
| 597 | register char **av, *nextcp; |
| 598 | register int i; |
| 599 | |
| 600 | if (fslist == NULL) |
| 601 | return (NULL); |
| 602 | if (fslist[0] == 'n' && fslist[1] == 'o') { |
| 603 | fslist += 2; |
| 604 | skipvfs = 1; |
| 605 | } |
| 606 | for (i = 0, nextcp = fslist; *nextcp; nextcp++) |
| 607 | if (*nextcp == ',') |
| 608 | i++; |
| 609 | av = (char **)malloc((size_t)(i+2) * sizeof(char *)); |
| 610 | if (av == NULL) |
| 611 | return (NULL); |
| 612 | nextcp = fslist; |
| 613 | i = 0; |
| 614 | av[i++] = nextcp; |
| 615 | while (nextcp = index(nextcp, ',')) { |
| 616 | *nextcp++ = '\0'; |
| 617 | av[i++] = nextcp; |
| 618 | } |
| 619 | av[i++] = 0; |
| 620 | return (av); |
| 621 | } |
| 622 | |
| 623 | #ifdef NFS |
| 624 | exclusive(a, b) |
| 625 | char *a, *b; |
| 626 | { |
| 627 | |
| 628 | (void) fprintf(stderr, "mount: Options %s, %s mutually exclusive\n", |
| 629 | a, b); |
| 630 | exit(1); |
| 631 | } |
| 632 | |
| 633 | /* |
| 634 | * Handle the getoption arg. |
| 635 | * Essentially update "opflags", "retrycnt" and "nfsargs" |
| 636 | */ |
| 637 | getnfsopts(optarg, nfsargsp, opflagsp, retrycntp) |
| 638 | char *optarg; |
| 639 | register struct nfs_args *nfsargsp; |
| 640 | int *opflagsp; |
| 641 | int *retrycntp; |
| 642 | { |
| 643 | register char *cp, *nextcp; |
| 644 | int num; |
| 645 | char *nump; |
| 646 | |
| 647 | for (cp = optarg; cp != NULL && *cp != '\0'; cp = nextcp) { |
| 648 | if ((nextcp = index(cp, ',')) != NULL) |
| 649 | *nextcp++ = '\0'; |
| 650 | if ((nump = index(cp, '=')) != NULL) { |
| 651 | *nump++ = '\0'; |
| 652 | num = atoi(nump); |
| 653 | } else |
| 654 | num = -1; |
| 655 | /* |
| 656 | * Just test for a string match and do it |
| 657 | */ |
| 658 | if (!strcmp(cp, "bg")) { |
| 659 | *opflagsp |= BGRND; |
| 660 | } else if (!strcmp(cp, "soft")) { |
| 661 | if (nfsargsp->flags & NFSMNT_SPONGY) |
| 662 | exclusive("soft, spongy"); |
| 663 | nfsargsp->flags |= NFSMNT_SOFT; |
| 664 | } else if (!strcmp(cp, "spongy")) { |
| 665 | if (nfsargsp->flags & NFSMNT_SOFT) |
| 666 | exclusive("soft, spongy"); |
| 667 | nfsargsp->flags |= NFSMNT_SPONGY; |
| 668 | } else if (!strcmp(cp, "compress")) { |
| 669 | nfsargsp->flags |= NFSMNT_COMPRESS; |
| 670 | } else if (!strcmp(cp, "intr")) { |
| 671 | nfsargsp->flags |= NFSMNT_INT; |
| 672 | } else if (!strcmp(cp, "tcp")) { |
| 673 | nfsargsp->sotype = SOCK_STREAM; |
| 674 | } else if (!strcmp(cp, "noconn")) { |
| 675 | nfsargsp->flags |= NFSMNT_NOCONN; |
| 676 | } else if (!strcmp(cp, "retry") && num > 0) { |
| 677 | *retrycntp = num; |
| 678 | } else if (!strcmp(cp, "rsize") && num > 0) { |
| 679 | nfsargsp->rsize = num; |
| 680 | nfsargsp->flags |= NFSMNT_RSIZE; |
| 681 | } else if (!strcmp(cp, "wsize") && num > 0) { |
| 682 | nfsargsp->wsize = num; |
| 683 | nfsargsp->flags |= NFSMNT_WSIZE; |
| 684 | } else if (!strcmp(cp, "timeo") && num > 0) { |
| 685 | nfsargsp->timeo = num; |
| 686 | nfsargsp->flags |= NFSMNT_TIMEO; |
| 687 | } else if (!strcmp(cp, "retrans") && num > 0) { |
| 688 | nfsargsp->retrans = num; |
| 689 | nfsargsp->flags |= NFSMNT_RETRANS; |
| 690 | } |
| 691 | } |
| 692 | if (nfsargsp->sotype == SOCK_DGRAM) { |
| 693 | if (nfsargsp->rsize > NFS_MAXDGRAMDATA) |
| 694 | nfsargsp->rsize = NFS_MAXDGRAMDATA; |
| 695 | if (nfsargsp->wsize > NFS_MAXDGRAMDATA) |
| 696 | nfsargsp->wsize = NFS_MAXDGRAMDATA; |
| 697 | } |
| 698 | } |
| 699 | |
| 700 | char * |
| 701 | getnfsargs(spec, nfsargsp) |
| 702 | char *spec; |
| 703 | struct nfs_args *nfsargsp; |
| 704 | { |
| 705 | register CLIENT *clp; |
| 706 | struct hostent *hp; |
| 707 | static struct sockaddr_in saddr; |
| 708 | struct timeval pertry, try; |
| 709 | enum clnt_stat clnt_stat; |
| 710 | int so = RPC_ANYSOCK; |
| 711 | char *fsp, *hostp, *delimp; |
| 712 | u_short tport; |
| 713 | static struct nfhret nfhret; |
| 714 | static char nam[MNAMELEN + 1]; |
| 715 | char buf[MAXPATHLEN + 1]; |
| 716 | |
| 717 | strncpy(buf, spec, MAXPATHLEN); |
| 718 | buf[MAXPATHLEN] = '\0'; |
| 719 | strncpy(nam, spec, MNAMELEN); |
| 720 | nam[MNAMELEN] = '\0'; |
| 721 | if ((delimp = index(buf, '@')) != NULL) { |
| 722 | hostp = delimp + 1; |
| 723 | fsp = buf; |
| 724 | } else if ((delimp = index(buf, ':')) != NULL) { |
| 725 | hostp = buf; |
| 726 | fsp = delimp + 1; |
| 727 | } else { |
| 728 | (void) fprintf(stderr, |
| 729 | "mount: No <host>:<dirpath> or <dirpath>@<host> spec\n"); |
| 730 | return (0); |
| 731 | } |
| 732 | *delimp = '\0'; |
| 733 | if ((hp = gethostbyname(hostp)) == NULL) { |
| 734 | (void) fprintf(stderr, "mount: Can't get net id for host\n"); |
| 735 | return (0); |
| 736 | } |
| 737 | bcopy(hp->h_addr, (caddr_t)&saddr.sin_addr, hp->h_length); |
| 738 | nfhret.stat = ETIMEDOUT; /* Mark not yet successful */ |
| 739 | while (retrycnt > 0) { |
| 740 | saddr.sin_family = AF_INET; |
| 741 | saddr.sin_port = htons(PMAPPORT); |
| 742 | if ((tport = pmap_getport(&saddr, RPCPROG_NFS, |
| 743 | NFS_VER2, IPPROTO_UDP)) == 0) { |
| 744 | if ((opflags & ISBGRND) == 0) |
| 745 | clnt_pcreateerror("NFS Portmap"); |
| 746 | } else { |
| 747 | saddr.sin_port = 0; |
| 748 | pertry.tv_sec = 10; |
| 749 | pertry.tv_usec = 0; |
| 750 | if ((clp = clntudp_create(&saddr, RPCPROG_MNT, |
| 751 | RPCMNT_VER1, pertry, &so)) == NULL) { |
| 752 | if ((opflags & ISBGRND) == 0) |
| 753 | clnt_pcreateerror("Cannot MNT PRC"); |
| 754 | } else { |
| 755 | clp->cl_auth = authunix_create_default(); |
| 756 | try.tv_sec = 10; |
| 757 | try.tv_usec = 0; |
| 758 | clnt_stat = clnt_call(clp, RPCMNT_MOUNT, |
| 759 | xdr_dir, fsp, xdr_fh, &nfhret, try); |
| 760 | if (clnt_stat != RPC_SUCCESS) { |
| 761 | if ((opflags & ISBGRND) == 0) |
| 762 | clnt_perror(clp, "Bad MNT RPC"); |
| 763 | } else { |
| 764 | auth_destroy(clp->cl_auth); |
| 765 | clnt_destroy(clp); |
| 766 | retrycnt = 0; |
| 767 | } |
| 768 | } |
| 769 | } |
| 770 | if (--retrycnt > 0) { |
| 771 | if (opflags & BGRND) { |
| 772 | opflags &= ~BGRND; |
| 773 | if (fork()) |
| 774 | return (0); |
| 775 | else |
| 776 | opflags |= ISBGRND; |
| 777 | } |
| 778 | sleep(10); |
| 779 | } |
| 780 | } |
| 781 | if (nfhret.stat) { |
| 782 | if (opflags & ISBGRND) |
| 783 | exit(1); |
| 784 | (void) fprintf(stderr, "Mount RPC error on %s: ", spec); |
| 785 | errno = nfhret.stat; |
| 786 | perror((char *)NULL); |
| 787 | return (0); |
| 788 | } |
| 789 | saddr.sin_port = htons(tport); |
| 790 | nfsargsp->addr = (struct sockaddr *) &saddr; |
| 791 | nfsargsp->fh = &nfhret.nfh; |
| 792 | nfsargsp->hostname = nam; |
| 793 | return ((caddr_t)nfsargsp); |
| 794 | } |
| 795 | |
| 796 | /* |
| 797 | * xdr routines for mount rpc's |
| 798 | */ |
| 799 | xdr_dir(xdrsp, dirp) |
| 800 | XDR *xdrsp; |
| 801 | char *dirp; |
| 802 | { |
| 803 | return (xdr_string(xdrsp, &dirp, RPCMNT_PATHLEN)); |
| 804 | } |
| 805 | |
| 806 | xdr_fh(xdrsp, np) |
| 807 | XDR *xdrsp; |
| 808 | struct nfhret *np; |
| 809 | { |
| 810 | if (!xdr_u_long(xdrsp, &(np->stat))) |
| 811 | return (0); |
| 812 | if (np->stat) |
| 813 | return (1); |
| 814 | return (xdr_opaque(xdrsp, (caddr_t)&(np->nfh), NFSX_FH)); |
| 815 | } |
| 816 | #endif /* NFS */ |