1 /* 2 * Copyright (c) 1983, 1989, 1993, 1994 3 * The Regents of the University of California. 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 * @(#) Copyright (c) 1983, 1989, 1993, 1994 The Regents of the University of California. All rights reserved. 34 * @(#)newfs.c 8.13 (Berkeley) 5/1/95 35 * $FreeBSD: src/sbin/newfs/newfs.c,v 1.30.2.9 2003/05/13 12:03:55 joerg Exp $ 36 * $DragonFly: src/sbin/newfs/newfs.c,v 1.8 2004/03/04 00:03:23 dillon Exp $ 37 */ 38 39 /* 40 * newfs: friendly front end to mkfs 41 */ 42 #include <sys/param.h> 43 #include <sys/stat.h> 44 #include <sys/disklabel.h> 45 #include <sys/file.h> 46 #include <sys/mount.h> 47 48 #include <vfs/ufs/dir.h> 49 #include <vfs/ufs/dinode.h> 50 #include <vfs/ufs/fs.h> 51 #include <vfs/ufs/ufsmount.h> 52 53 #include <ctype.h> 54 #include <err.h> 55 #include <errno.h> 56 #include <paths.h> 57 #include <stdio.h> 58 #include <stdlib.h> 59 #include <string.h> 60 #include <syslog.h> 61 #include <unistd.h> 62 63 #ifdef MFS 64 #include <sys/types.h> 65 #include <sys/mman.h> 66 #endif 67 68 #if __STDC__ 69 #include <stdarg.h> 70 #else 71 #include <varargs.h> 72 #endif 73 74 #include "mntopts.h" 75 #include "defs.h" 76 77 struct mntopt mopts[] = { 78 MOPT_STDOPTS, 79 MOPT_ASYNC, 80 { NULL }, 81 }; 82 83 void fatal(const char *fmt, ...); 84 85 #define COMPAT /* allow non-labeled disks */ 86 87 /* 88 * The following two constants set the default block and fragment sizes. 89 * Both constants must be a power of 2 and meet the following constraints: 90 * MINBSIZE <= DESBLKSIZE <= MAXBSIZE 91 * sectorsize <= DESFRAGSIZE <= DESBLKSIZE 92 * DESBLKSIZE / DESFRAGSIZE <= 8 93 */ 94 #define DFL_FRAGSIZE 2048 95 #define DFL_BLKSIZE 16384 96 97 /* 98 * Cylinder groups may have up to many cylinders. The actual 99 * number used depends upon how much information can be stored 100 * on a single cylinder. The default is to use as many as possible 101 * cylinders per group. 102 */ 103 #define DESCPG 65536 /* desired fs_cpg ("infinity") */ 104 105 /* 106 * Once upon a time... 107 * ROTDELAY gives the minimum number of milliseconds to initiate 108 * another disk transfer on the same cylinder. It is used in 109 * determining the rotationally optimal layout for disk blocks 110 * within a file; the default of fs_rotdelay is 4ms. 111 * 112 * ...but now we make this 0 to disable the rotdelay delay because 113 * modern drives with read/write-behind achieve higher performance 114 * without the delay. 115 */ 116 #define ROTDELAY 0 117 118 /* 119 * MAXBLKPG determines the maximum number of data blocks which are 120 * placed in a single cylinder group. The default is one indirect 121 * block worth of data blocks. 122 */ 123 #define MAXBLKPG(bsize) ((bsize) / sizeof(daddr_t)) 124 125 /* 126 * Each file system has a number of inodes statically allocated. 127 * We allocate one inode slot per NFPI fragments, expecting this 128 * to be far more than we will ever need. 129 */ 130 #define NFPI 4 131 132 /* 133 * Once upon a time... 134 * For each cylinder we keep track of the availability of blocks at different 135 * rotational positions, so that we can lay out the data to be picked 136 * up with minimum rotational latency. NRPOS is the default number of 137 * rotational positions that we distinguish. With NRPOS of 8 the resolution 138 * of our summary information is 2ms for a typical 3600 rpm drive. 139 * 140 * ...but now we make this 1 (which essentially disables the rotational 141 * position table because modern drives with read-ahead and write-behind do 142 * better without the rotational position table. 143 */ 144 #define NRPOS 1 /* number distinct rotational positions */ 145 146 /* 147 * About the same time as the above, we knew what went where on the disks. 148 * no longer so, so kill the code which finds the different platters too... 149 * We do this by saying one head, with a lot of sectors on it. 150 * The number of sectors are used to determine the size of a cyl-group. 151 * Kirk suggested one or two meg per "cylinder" so we say two. 152 */ 153 #define NTRACKS 1 /* number of heads */ 154 #define NSECTORS 4096 /* number of sectors */ 155 156 int mfs; /* run as the memory based filesystem */ 157 char *mfs_mtpt; /* mount point for mfs */ 158 struct stat mfs_mtstat; /* stat prior to mount */ 159 int Nflag; /* run without writing file system */ 160 int Oflag; /* format as an 4.3BSD file system */ 161 int Cflag; /* copy underlying filesystem (mfs only) */ 162 int Uflag; /* enable soft updates for file system */ 163 int fssize; /* file system size */ 164 int ntracks = NTRACKS; /* # tracks/cylinder */ 165 int nsectors = NSECTORS; /* # sectors/track */ 166 int nphyssectors; /* # sectors/track including spares */ 167 int secpercyl; /* sectors per cylinder */ 168 int trackspares = -1; /* spare sectors per track */ 169 int cylspares = -1; /* spare sectors per cylinder */ 170 int sectorsize; /* bytes/sector */ 171 int realsectorsize; /* bytes/sector in hardware */ 172 int rpm; /* revolutions/minute of drive */ 173 int interleave; /* hardware sector interleave */ 174 int trackskew = -1; /* sector 0 skew, per track */ 175 int headswitch; /* head switch time, usec */ 176 int trackseek; /* track-to-track seek, usec */ 177 int fsize = 0; /* fragment size */ 178 int bsize = 0; /* block size */ 179 int cpg = DESCPG; /* cylinders/cylinder group */ 180 int cpgflg; /* cylinders/cylinder group flag was given */ 181 int minfree = MINFREE; /* free space threshold */ 182 int opt = DEFAULTOPT; /* optimization preference (space or time) */ 183 int density; /* number of bytes per inode */ 184 int maxcontig = 0; /* max contiguous blocks to allocate */ 185 int rotdelay = ROTDELAY; /* rotational delay between blocks */ 186 int maxbpg; /* maximum blocks per file in a cyl group */ 187 int nrpos = NRPOS; /* # of distinguished rotational positions */ 188 int avgfilesize = AVFILESIZ;/* expected average file size */ 189 int avgfilesperdir = AFPDIR;/* expected number of files per directory */ 190 int bbsize = BBSIZE; /* boot block size */ 191 int sbsize = SBSIZE; /* superblock size */ 192 int mntflags = MNT_ASYNC; /* flags to be passed to mount */ 193 int t_or_u_flag = 0; /* user has specified -t or -u */ 194 u_long memleft; /* virtual memory available */ 195 caddr_t membase; /* start address of memory based filesystem */ 196 char *filename; 197 #ifdef COMPAT 198 char *disktype; 199 int unlabeled; 200 #endif 201 202 char device[MAXPATHLEN]; 203 char *progname; 204 205 struct disklabel *getdisklabel(char *, int); 206 static void rewritelabel(char *, int, struct disklabel *); 207 static void usage(void); 208 209 int 210 main(int argc, char **argv) 211 { 212 register int ch; 213 register struct partition *pp; 214 register struct disklabel *lp; 215 struct disklabel mfsfakelabel; 216 struct disklabel *getdisklabel(); 217 struct partition oldpartition; 218 struct stat st; 219 struct statfs *mp; 220 int fsi = 0, fso, len, n, vflag; 221 char *cp = NULL, *s1, *s2, *special, *opstring; 222 #ifdef MFS 223 struct vfsconf vfc; 224 int error; 225 char buf[BUFSIZ]; 226 #endif 227 228 vflag = 0; 229 if ((progname = strrchr(*argv, '/'))) 230 ++progname; 231 else 232 progname = *argv; 233 234 if (strstr(progname, "mfs")) { 235 mfs = 1; 236 Nflag++; 237 } 238 239 opstring = mfs ? 240 "NCF:T:Ua:b:c:d:e:f:g:h:i:m:o:s:v" : 241 "NOS:T:Ua:b:c:d:e:f:g:h:i:k:l:m:n:o:p:r:s:t:u:vx:"; 242 while ((ch = getopt(argc, argv, opstring)) != -1) 243 switch (ch) { 244 case 'N': 245 Nflag = 1; 246 break; 247 case 'O': 248 Oflag = 1; 249 break; 250 case 'C': 251 Cflag = 1; /* MFS only */ 252 break; 253 case 'S': 254 if ((sectorsize = atoi(optarg)) <= 0) 255 fatal("%s: bad sector size", optarg); 256 break; 257 #ifdef COMPAT 258 case 'T': 259 disktype = optarg; 260 break; 261 #endif 262 case 'F': 263 filename = optarg; 264 break; 265 case 'U': 266 Uflag = 1; 267 break; 268 case 'a': 269 if ((maxcontig = atoi(optarg)) <= 0) 270 fatal("%s: bad maximum contiguous blocks", 271 optarg); 272 break; 273 case 'b': 274 if ((bsize = atoi(optarg)) < MINBSIZE) 275 fatal("%s: bad block size", optarg); 276 break; 277 case 'c': 278 if ((cpg = atoi(optarg)) <= 0) 279 fatal("%s: bad cylinders/group", optarg); 280 cpgflg++; 281 break; 282 case 'd': 283 if ((rotdelay = atoi(optarg)) < 0) 284 fatal("%s: bad rotational delay", optarg); 285 break; 286 case 'e': 287 if ((maxbpg = atoi(optarg)) <= 0) 288 fatal("%s: bad blocks per file in a cylinder group", 289 optarg); 290 break; 291 case 'f': 292 if ((fsize = atoi(optarg)) <= 0) 293 fatal("%s: bad fragment size", optarg); 294 break; 295 case 'g': 296 if ((avgfilesize = atoi(optarg)) <= 0) 297 fatal("%s: bad average file size", optarg); 298 break; 299 case 'h': 300 if ((avgfilesperdir = atoi(optarg)) <= 0) 301 fatal("%s: bad average files per dir", optarg); 302 break; 303 case 'i': 304 if ((density = atoi(optarg)) <= 0) 305 fatal("%s: bad bytes per inode", optarg); 306 break; 307 case 'k': 308 if ((trackskew = atoi(optarg)) < 0) 309 fatal("%s: bad track skew", optarg); 310 break; 311 case 'l': 312 if ((interleave = atoi(optarg)) <= 0) 313 fatal("%s: bad interleave", optarg); 314 break; 315 case 'm': 316 if ((minfree = atoi(optarg)) < 0 || minfree > 99) 317 fatal("%s: bad free space %%", optarg); 318 break; 319 case 'n': 320 if ((nrpos = atoi(optarg)) < 0) 321 fatal("%s: bad rotational layout count", 322 optarg); 323 if (nrpos == 0) 324 nrpos = 1; 325 break; 326 case 'o': 327 if (mfs) 328 getmntopts(optarg, mopts, &mntflags, 0); 329 else { 330 if (strcmp(optarg, "space") == 0) 331 opt = FS_OPTSPACE; 332 else if (strcmp(optarg, "time") == 0) 333 opt = FS_OPTTIME; 334 else 335 fatal("%s: unknown optimization preference: use `space' or `time'", optarg); 336 } 337 break; 338 case 'p': 339 if ((trackspares = atoi(optarg)) < 0) 340 fatal("%s: bad spare sectors per track", 341 optarg); 342 break; 343 case 'r': 344 if ((rpm = atoi(optarg)) <= 0) 345 fatal("%s: bad revolutions/minute", optarg); 346 break; 347 case 's': 348 if ((fssize = atoi(optarg)) <= 0) 349 fatal("%s: bad file system size", optarg); 350 break; 351 case 't': 352 t_or_u_flag++; 353 if ((ntracks = atoi(optarg)) < 0) 354 fatal("%s: bad total tracks", optarg); 355 break; 356 case 'u': 357 t_or_u_flag++; 358 if ((nsectors = atoi(optarg)) < 0) 359 fatal("%s: bad sectors/track", optarg); 360 break; 361 case 'v': 362 vflag = 1; 363 break; 364 case 'x': 365 if ((cylspares = atoi(optarg)) < 0) 366 fatal("%s: bad spare sectors per cylinder", 367 optarg); 368 break; 369 case '?': 370 default: 371 usage(); 372 } 373 argc -= optind; 374 argv += optind; 375 376 if (argc != 2 && (mfs || argc != 1)) 377 usage(); 378 379 special = argv[0]; 380 /* Copy the NetBSD way of faking up a disk label */ 381 if (mfs && !strcmp(special, "swap")) { 382 /* 383 * it's an MFS, mounted on "swap." fake up a label. 384 * XXX XXX XXX 385 */ 386 fso = -1; /* XXX; normally done below. */ 387 388 memset(&mfsfakelabel, 0, sizeof(mfsfakelabel)); 389 mfsfakelabel.d_secsize = 512; 390 mfsfakelabel.d_nsectors = 64; 391 mfsfakelabel.d_ntracks = 16; 392 mfsfakelabel.d_ncylinders = 16; 393 mfsfakelabel.d_secpercyl = 1024; 394 mfsfakelabel.d_secperunit = 16384; 395 mfsfakelabel.d_rpm = 3600; 396 mfsfakelabel.d_interleave = 1; 397 mfsfakelabel.d_npartitions = 1; 398 mfsfakelabel.d_partitions[0].p_size = 16384; 399 mfsfakelabel.d_partitions[0].p_fsize = 1024; 400 mfsfakelabel.d_partitions[0].p_frag = 8; 401 mfsfakelabel.d_partitions[0].p_cpg = 16; 402 403 lp = &mfsfakelabel; 404 pp = &mfsfakelabel.d_partitions[0]; 405 406 goto havelabel; 407 } 408 409 cp = strrchr(special, '/'); 410 if (cp == 0) { 411 /* 412 * No path prefix; try /dev/%s. 413 */ 414 (void)snprintf(device, sizeof(device), "%s%s", _PATH_DEV, special); 415 special = device; 416 } 417 if (Nflag) { 418 fso = -1; 419 } else { 420 fso = open(special, O_WRONLY); 421 if (fso < 0) 422 fatal("%s: %s", special, strerror(errno)); 423 424 /* Bail if target special is mounted */ 425 n = getmntinfo(&mp, MNT_NOWAIT); 426 if (n == 0) 427 fatal("%s: getmntinfo: %s", special, strerror(errno)); 428 429 len = sizeof(_PATH_DEV) - 1; 430 s1 = special; 431 if (strncmp(_PATH_DEV, s1, len) == 0) 432 s1 += len; 433 434 while (--n >= 0) { 435 s2 = mp->f_mntfromname; 436 if (strncmp(_PATH_DEV, s2, len) == 0) { 437 s2 += len - 1; 438 *s2 = 'r'; 439 } 440 if (strcmp(s1, s2) == 0 || strcmp(s1, &s2[1]) == 0) 441 fatal("%s is mounted on %s", 442 special, mp->f_mntonname); 443 ++mp; 444 } 445 } 446 if (mfs && disktype != NULL) { 447 lp = (struct disklabel *)getdiskbyname(disktype); 448 if (lp == NULL) 449 fatal("%s: unknown disk type", disktype); 450 pp = &lp->d_partitions[1]; 451 } else { 452 fsi = open(special, O_RDONLY); 453 if (fsi < 0) 454 fatal("%s: %s", special, strerror(errno)); 455 if (fstat(fsi, &st) < 0) 456 fatal("%s: %s", special, strerror(errno)); 457 if ((st.st_mode & S_IFMT) != S_IFCHR && !mfs) 458 printf("%s: %s: not a character-special device\n", 459 progname, special); 460 cp = strchr(argv[0], '\0'); 461 if (cp == argv[0]) 462 fatal("null special file name"); 463 cp--; 464 if (!vflag && (*cp < 'a' || *cp >= 'a' + MAXPARTITIONS) && !isdigit(*cp)) { 465 fatal("%s: can't figure out file system partition", 466 argv[0]); 467 } 468 #ifdef COMPAT 469 if (!mfs && disktype == NULL) 470 disktype = argv[1]; 471 #endif 472 lp = getdisklabel(special, fsi); 473 if (vflag || isdigit(*cp)) 474 pp = &lp->d_partitions[0]; 475 else 476 pp = &lp->d_partitions[*cp - 'a']; 477 if (pp->p_size == 0) 478 fatal("%s: `%c' partition is unavailable", 479 argv[0], *cp); 480 if (pp->p_fstype == FS_BOOT) 481 fatal("%s: `%c' partition overlaps boot program", 482 argv[0], *cp); 483 } 484 havelabel: 485 if (fssize == 0) 486 fssize = pp->p_size; 487 if (fssize > pp->p_size && !mfs) 488 fatal("%s: maximum file system size on the `%c' partition is %d", 489 argv[0], *cp, pp->p_size); 490 if (rpm == 0) { 491 rpm = lp->d_rpm; 492 if (rpm <= 0) 493 rpm = 3600; 494 } 495 if (ntracks == 0) { 496 ntracks = lp->d_ntracks; 497 if (ntracks <= 0) 498 fatal("%s: no default #tracks", argv[0]); 499 } 500 if (nsectors == 0) { 501 nsectors = lp->d_nsectors; 502 if (nsectors <= 0) 503 fatal("%s: no default #sectors/track", argv[0]); 504 } 505 if (sectorsize == 0) { 506 sectorsize = lp->d_secsize; 507 if (sectorsize <= 0) 508 fatal("%s: no default sector size", argv[0]); 509 } 510 if (trackskew == -1) { 511 trackskew = lp->d_trackskew; 512 if (trackskew < 0) 513 trackskew = 0; 514 } 515 if (interleave == 0) { 516 interleave = lp->d_interleave; 517 if (interleave <= 0) 518 interleave = 1; 519 } 520 if (fsize == 0) { 521 fsize = pp->p_fsize; 522 if (fsize <= 0) 523 fsize = MAX(DFL_FRAGSIZE, lp->d_secsize); 524 } 525 if (bsize == 0) { 526 bsize = pp->p_frag * pp->p_fsize; 527 if (bsize <= 0) 528 bsize = MIN(DFL_BLKSIZE, 8 * fsize); 529 } 530 /* 531 * Maxcontig sets the default for the maximum number of blocks 532 * that may be allocated sequentially. With filesystem clustering 533 * it is possible to allocate contiguous blocks up to the maximum 534 * transfer size permitted by the controller or buffering. 535 */ 536 if (maxcontig == 0) 537 maxcontig = MAX(1, MAXPHYS / bsize - 1); 538 if (density == 0) 539 density = NFPI * fsize; 540 if (minfree < MINFREE && opt != FS_OPTSPACE) { 541 fprintf(stderr, "Warning: changing optimization to space "); 542 fprintf(stderr, "because minfree is less than %d%%\n", MINFREE); 543 opt = FS_OPTSPACE; 544 } 545 if (trackspares == -1) { 546 trackspares = lp->d_sparespertrack; 547 if (trackspares < 0) 548 trackspares = 0; 549 } 550 nphyssectors = nsectors + trackspares; 551 if (cylspares == -1) { 552 cylspares = lp->d_sparespercyl; 553 if (cylspares < 0) 554 cylspares = 0; 555 } 556 secpercyl = nsectors * ntracks - cylspares; 557 /* 558 * Only complain if -t or -u have been specified; the default 559 * case (4096 sectors per cylinder) is intended to disagree 560 * with the disklabel. 561 */ 562 if (t_or_u_flag && secpercyl != lp->d_secpercyl) 563 fprintf(stderr, "%s (%d) %s (%lu)\n", 564 "Warning: calculated sectors per cylinder", secpercyl, 565 "disagrees with disk label", (u_long)lp->d_secpercyl); 566 if (maxbpg == 0) 567 maxbpg = MAXBLKPG(bsize); 568 headswitch = lp->d_headswitch; 569 trackseek = lp->d_trkseek; 570 #ifdef notdef /* label may be 0 if faked up by kernel */ 571 bbsize = lp->d_bbsize; 572 sbsize = lp->d_sbsize; 573 #endif 574 oldpartition = *pp; 575 #ifdef tahoe 576 realsectorsize = sectorsize; 577 if (sectorsize != DEV_BSIZE) { /* XXX */ 578 int secperblk = DEV_BSIZE / sectorsize; 579 580 sectorsize = DEV_BSIZE; 581 nsectors /= secperblk; 582 nphyssectors /= secperblk; 583 secpercyl /= secperblk; 584 fssize /= secperblk; 585 pp->p_size /= secperblk; 586 } 587 #else 588 realsectorsize = sectorsize; 589 if (sectorsize != DEV_BSIZE) { /* XXX */ 590 int secperblk = sectorsize / DEV_BSIZE; 591 592 sectorsize = DEV_BSIZE; 593 nsectors *= secperblk; 594 nphyssectors *= secperblk; 595 secpercyl *= secperblk; 596 fssize *= secperblk; 597 pp->p_size *= secperblk; 598 } 599 #endif 600 if (mfs) { 601 mfs_mtpt = argv[1]; 602 if ( 603 stat(mfs_mtpt, &mfs_mtstat) < 0 || 604 !S_ISDIR(mfs_mtstat.st_mode) 605 ) { 606 fatal("mount point not dir: %s", mfs_mtpt); 607 } 608 } 609 mkfs(pp, special, fsi, fso, (Cflag && mfs) ? argv[1] : NULL); 610 #ifdef tahoe 611 if (realsectorsize != DEV_BSIZE) 612 pp->p_size *= DEV_BSIZE / realsectorsize; 613 #else 614 if (realsectorsize != DEV_BSIZE) 615 pp->p_size /= realsectorsize /DEV_BSIZE; 616 #endif 617 if (!Nflag && bcmp(pp, &oldpartition, sizeof(oldpartition))) 618 rewritelabel(special, fso, lp); 619 if (!Nflag) 620 close(fso); 621 close(fsi); 622 #ifdef MFS 623 if (mfs) { 624 struct mfs_args args; 625 626 snprintf(buf, sizeof(buf), "mfs:%d", getpid()); 627 args.fspec = buf; 628 args.export.ex_root = -2; 629 if (mntflags & MNT_RDONLY) 630 args.export.ex_flags = MNT_EXRDONLY; 631 else 632 args.export.ex_flags = 0; 633 args.base = membase; 634 args.size = fssize * sectorsize; 635 636 error = getvfsbyname("mfs", &vfc); 637 if (error && vfsisloadable("mfs")) { 638 if (vfsload("mfs")) 639 fatal("vfsload(mfs)"); 640 endvfsent(); /* flush cache */ 641 error = getvfsbyname("mfs", &vfc); 642 } 643 if (error) 644 fatal("mfs filesystem not available"); 645 646 if (mount(vfc.vfc_name, argv[1], mntflags, &args) < 0) 647 fatal("%s: %s", argv[1], strerror(errno)); 648 if (filename) { 649 munmap(membase,fssize * sectorsize); 650 } 651 } 652 #endif 653 exit(0); 654 } 655 656 #ifdef COMPAT 657 char lmsg[] = "%s: can't read disk label; disk type must be specified"; 658 #else 659 char lmsg[] = "%s: can't read disk label"; 660 #endif 661 662 struct disklabel * 663 getdisklabel(char *s, int fd) 664 { 665 static struct disklabel lab; 666 667 if (ioctl(fd, DIOCGDINFO, (char *)&lab) < 0) { 668 #ifdef COMPAT 669 if (disktype) { 670 struct disklabel *lp, *getdiskbyname(); 671 672 unlabeled++; 673 lp = getdiskbyname(disktype); 674 if (lp == NULL) 675 fatal("%s: unknown disk type", disktype); 676 return (lp); 677 } 678 #endif 679 warn("ioctl (GDINFO)"); 680 fatal(lmsg, s); 681 } 682 return (&lab); 683 } 684 685 static void 686 rewritelabel(char *s, int fd, struct disklabel *lp) 687 { 688 #ifdef COMPAT 689 if (unlabeled) 690 return; 691 #endif 692 lp->d_checksum = 0; 693 lp->d_checksum = dkcksum(lp); 694 if (ioctl(fd, DIOCWDINFO, (char *)lp) < 0) { 695 warn("ioctl (WDINFO)"); 696 fatal("%s: can't rewrite disk label", s); 697 } 698 } 699 700 /*VARARGS*/ 701 void 702 fatal(const char *fmt, ...) 703 { 704 va_list ap; 705 706 va_start(ap, fmt); 707 if (fcntl(STDERR_FILENO, F_GETFL) < 0) { 708 openlog(progname, LOG_CONS, LOG_DAEMON); 709 vsyslog(LOG_ERR, fmt, ap); 710 closelog(); 711 } else { 712 vwarnx(fmt, ap); 713 } 714 va_end(ap); 715 exit(1); 716 /*NOTREACHED*/ 717 } 718 719 static void 720 usage(void) 721 { 722 if (mfs) { 723 fprintf(stderr, 724 "usage: %s [ -fsoptions ] special-device mount-point\n", 725 progname); 726 } else 727 fprintf(stderr, 728 "usage: %s [ -fsoptions ] special-device%s\n", 729 progname, 730 #ifdef COMPAT 731 " [device-type]"); 732 #else 733 ""); 734 #endif 735 fprintf(stderr, "where fsoptions are:\n"); 736 fprintf(stderr, 737 "\t-N do not create file system, just print out parameters\n"); 738 fprintf(stderr, "\t-O create a 4.3BSD format filesystem\n"); 739 fprintf(stderr, "\t-S sector size\n"); 740 #ifdef COMPAT 741 fprintf(stderr, "\t-T disktype\n"); 742 #endif 743 fprintf(stderr, "\t-U enable soft updates\n"); 744 fprintf(stderr, "\t-a maximum contiguous blocks\n"); 745 fprintf(stderr, "\t-b block size\n"); 746 fprintf(stderr, "\t-c cylinders/group\n"); 747 fprintf(stderr, "\t-d rotational delay between contiguous blocks\n"); 748 fprintf(stderr, "\t-e maximum blocks per file in a cylinder group\n"); 749 fprintf(stderr, "\t-f frag size\n"); 750 fprintf(stderr, "\t-g average file size\n"); 751 fprintf(stderr, "\t-h average files per directory\n"); 752 fprintf(stderr, "\t-i number of bytes per inode\n"); 753 fprintf(stderr, "\t-k sector 0 skew, per track\n"); 754 fprintf(stderr, "\t-l hardware sector interleave\n"); 755 fprintf(stderr, "\t-m minimum free space %%\n"); 756 fprintf(stderr, "\t-n number of distinguished rotational positions\n"); 757 fprintf(stderr, "\t-o optimization preference (`space' or `time')\n"); 758 fprintf(stderr, "\t-p spare sectors per track\n"); 759 fprintf(stderr, "\t-s file system size (sectors)\n"); 760 fprintf(stderr, "\t-r revolutions/minute\n"); 761 fprintf(stderr, "\t-t tracks/cylinder\n"); 762 fprintf(stderr, "\t-u sectors/track\n"); 763 fprintf(stderr, 764 "\t-v do not attempt to determine partition name from device name\n"); 765 fprintf(stderr, "\t-x spare sectors per cylinder\n"); 766 exit(1); 767 } 768