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 1.5 2003/11/01 17:16:01 drhodus 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 76 struct mntopt mopts[] = { 77 MOPT_STDOPTS, 78 MOPT_ASYNC, 79 { NULL }, 80 }; 81 82 void fatal(const char *fmt, ...); 83 84 #define COMPAT /* allow non-labeled disks */ 85 86 /* 87 * The following two constants set the default block and fragment sizes. 88 * Both constants must be a power of 2 and meet the following constraints: 89 * MINBSIZE <= DESBLKSIZE <= MAXBSIZE 90 * sectorsize <= DESFRAGSIZE <= DESBLKSIZE 91 * DESBLKSIZE / DESFRAGSIZE <= 8 92 */ 93 #define DFL_FRAGSIZE 2048 94 #define DFL_BLKSIZE 16384 95 96 /* 97 * Cylinder groups may have up to many cylinders. The actual 98 * number used depends upon how much information can be stored 99 * on a single cylinder. The default is to use as many as possible 100 * cylinders per group. 101 */ 102 #define DESCPG 65536 /* desired fs_cpg ("infinity") */ 103 104 /* 105 * Once upon a time... 106 * ROTDELAY gives the minimum number of milliseconds to initiate 107 * another disk transfer on the same cylinder. It is used in 108 * determining the rotationally optimal layout for disk blocks 109 * within a file; the default of fs_rotdelay is 4ms. 110 * 111 * ...but now we make this 0 to disable the rotdelay delay because 112 * modern drives with read/write-behind achieve higher performance 113 * without the delay. 114 */ 115 #define ROTDELAY 0 116 117 /* 118 * MAXBLKPG determines the maximum number of data blocks which are 119 * placed in a single cylinder group. The default is one indirect 120 * block worth of data blocks. 121 */ 122 #define MAXBLKPG(bsize) ((bsize) / sizeof(daddr_t)) 123 124 /* 125 * Each file system has a number of inodes statically allocated. 126 * We allocate one inode slot per NFPI fragments, expecting this 127 * to be far more than we will ever need. 128 */ 129 #define NFPI 4 130 131 /* 132 * Once upon a time... 133 * For each cylinder we keep track of the availability of blocks at different 134 * rotational positions, so that we can lay out the data to be picked 135 * up with minimum rotational latency. NRPOS is the default number of 136 * rotational positions that we distinguish. With NRPOS of 8 the resolution 137 * of our summary information is 2ms for a typical 3600 rpm drive. 138 * 139 * ...but now we make this 1 (which essentially disables the rotational 140 * position table because modern drives with read-ahead and write-behind do 141 * better without the rotational position table. 142 */ 143 #define NRPOS 1 /* number distinct rotational positions */ 144 145 /* 146 * About the same time as the above, we knew what went where on the disks. 147 * no longer so, so kill the code which finds the different platters too... 148 * We do this by saying one head, with a lot of sectors on it. 149 * The number of sectors are used to determine the size of a cyl-group. 150 * Kirk suggested one or two meg per "cylinder" so we say two. 151 */ 152 #define NTRACKS 1 /* number of heads */ 153 #define NSECTORS 4096 /* number of sectors */ 154 155 int mfs; /* run as the memory based filesystem */ 156 char *mfs_mtpt; /* mount point for mfs */ 157 struct stat mfs_mtstat; /* stat prior to mount */ 158 int Nflag; /* run without writing file system */ 159 int Oflag; /* format as an 4.3BSD file system */ 160 int Uflag; /* enable soft updates for file system */ 161 int fssize; /* file system size */ 162 int ntracks = NTRACKS; /* # tracks/cylinder */ 163 int nsectors = NSECTORS; /* # sectors/track */ 164 int nphyssectors; /* # sectors/track including spares */ 165 int secpercyl; /* sectors per cylinder */ 166 int trackspares = -1; /* spare sectors per track */ 167 int cylspares = -1; /* spare sectors per cylinder */ 168 int sectorsize; /* bytes/sector */ 169 int realsectorsize; /* bytes/sector in hardware */ 170 int rpm; /* revolutions/minute of drive */ 171 int interleave; /* hardware sector interleave */ 172 int trackskew = -1; /* sector 0 skew, per track */ 173 int headswitch; /* head switch time, usec */ 174 int trackseek; /* track-to-track seek, usec */ 175 int fsize = 0; /* fragment size */ 176 int bsize = 0; /* block size */ 177 int cpg = DESCPG; /* cylinders/cylinder group */ 178 int cpgflg; /* cylinders/cylinder group flag was given */ 179 int minfree = MINFREE; /* free space threshold */ 180 int opt = DEFAULTOPT; /* optimization preference (space or time) */ 181 int density; /* number of bytes per inode */ 182 int maxcontig = 0; /* max contiguous blocks to allocate */ 183 int rotdelay = ROTDELAY; /* rotational delay between blocks */ 184 int maxbpg; /* maximum blocks per file in a cyl group */ 185 int nrpos = NRPOS; /* # of distinguished rotational positions */ 186 int avgfilesize = AVFILESIZ;/* expected average file size */ 187 int avgfilesperdir = AFPDIR;/* expected number of files per directory */ 188 int bbsize = BBSIZE; /* boot block size */ 189 int sbsize = SBSIZE; /* superblock size */ 190 int mntflags = MNT_ASYNC; /* flags to be passed to mount */ 191 int t_or_u_flag = 0; /* user has specified -t or -u */ 192 u_long memleft; /* virtual memory available */ 193 caddr_t membase; /* start address of memory based filesystem */ 194 char *filename; 195 #ifdef COMPAT 196 char *disktype; 197 int unlabeled; 198 #endif 199 200 char device[MAXPATHLEN]; 201 char *progname; 202 203 extern void mkfs(struct partition *, char *, int, int); 204 static void usage(void); 205 206 int 207 main(int argc, char **argv) 208 { 209 register int ch; 210 register struct partition *pp; 211 register struct disklabel *lp; 212 struct disklabel mfsfakelabel; 213 struct disklabel *getdisklabel(); 214 struct partition oldpartition; 215 struct stat st; 216 struct statfs *mp; 217 int fsi, fso, len, n, vflag; 218 char *cp, *s1, *s2, *special, *opstring; 219 #ifdef MFS 220 struct vfsconf vfc; 221 int error; 222 char buf[BUFSIZ]; 223 #endif 224 225 vflag = 0; 226 if ((progname = strrchr(*argv, '/'))) 227 ++progname; 228 else 229 progname = *argv; 230 231 if (strstr(progname, "mfs")) { 232 mfs = 1; 233 Nflag++; 234 } 235 236 opstring = mfs ? 237 "NF:T:Ua:b:c:d:e:f:g:h:i:m:o:s:v" : 238 "NOS:T:Ua:b:c:d:e:f:g:h:i:k:l:m:n:o:p:r:s:t:u:vx:"; 239 while ((ch = getopt(argc, argv, opstring)) != -1) 240 switch (ch) { 241 case 'N': 242 Nflag = 1; 243 break; 244 case 'O': 245 Oflag = 1; 246 break; 247 case 'S': 248 if ((sectorsize = atoi(optarg)) <= 0) 249 fatal("%s: bad sector size", optarg); 250 break; 251 #ifdef COMPAT 252 case 'T': 253 disktype = optarg; 254 break; 255 #endif 256 case 'F': 257 filename = optarg; 258 break; 259 case 'U': 260 Uflag = 1; 261 break; 262 case 'a': 263 if ((maxcontig = atoi(optarg)) <= 0) 264 fatal("%s: bad maximum contiguous blocks", 265 optarg); 266 break; 267 case 'b': 268 if ((bsize = atoi(optarg)) < MINBSIZE) 269 fatal("%s: bad block size", optarg); 270 break; 271 case 'c': 272 if ((cpg = atoi(optarg)) <= 0) 273 fatal("%s: bad cylinders/group", optarg); 274 cpgflg++; 275 break; 276 case 'd': 277 if ((rotdelay = atoi(optarg)) < 0) 278 fatal("%s: bad rotational delay", optarg); 279 break; 280 case 'e': 281 if ((maxbpg = atoi(optarg)) <= 0) 282 fatal("%s: bad blocks per file in a cylinder group", 283 optarg); 284 break; 285 case 'f': 286 if ((fsize = atoi(optarg)) <= 0) 287 fatal("%s: bad fragment size", optarg); 288 break; 289 case 'g': 290 if ((avgfilesize = atoi(optarg)) <= 0) 291 fatal("%s: bad average file size", optarg); 292 break; 293 case 'h': 294 if ((avgfilesperdir = atoi(optarg)) <= 0) 295 fatal("%s: bad average files per dir", optarg); 296 break; 297 case 'i': 298 if ((density = atoi(optarg)) <= 0) 299 fatal("%s: bad bytes per inode", optarg); 300 break; 301 case 'k': 302 if ((trackskew = atoi(optarg)) < 0) 303 fatal("%s: bad track skew", optarg); 304 break; 305 case 'l': 306 if ((interleave = atoi(optarg)) <= 0) 307 fatal("%s: bad interleave", optarg); 308 break; 309 case 'm': 310 if ((minfree = atoi(optarg)) < 0 || minfree > 99) 311 fatal("%s: bad free space %%", optarg); 312 break; 313 case 'n': 314 if ((nrpos = atoi(optarg)) < 0) 315 fatal("%s: bad rotational layout count", 316 optarg); 317 if (nrpos == 0) 318 nrpos = 1; 319 break; 320 case 'o': 321 if (mfs) 322 getmntopts(optarg, mopts, &mntflags, 0); 323 else { 324 if (strcmp(optarg, "space") == 0) 325 opt = FS_OPTSPACE; 326 else if (strcmp(optarg, "time") == 0) 327 opt = FS_OPTTIME; 328 else 329 fatal("%s: unknown optimization preference: use `space' or `time'", optarg); 330 } 331 break; 332 case 'p': 333 if ((trackspares = atoi(optarg)) < 0) 334 fatal("%s: bad spare sectors per track", 335 optarg); 336 break; 337 case 'r': 338 if ((rpm = atoi(optarg)) <= 0) 339 fatal("%s: bad revolutions/minute", optarg); 340 break; 341 case 's': 342 if ((fssize = atoi(optarg)) <= 0) 343 fatal("%s: bad file system size", optarg); 344 break; 345 case 't': 346 t_or_u_flag++; 347 if ((ntracks = atoi(optarg)) < 0) 348 fatal("%s: bad total tracks", optarg); 349 break; 350 case 'u': 351 t_or_u_flag++; 352 if ((nsectors = atoi(optarg)) < 0) 353 fatal("%s: bad sectors/track", optarg); 354 break; 355 case 'v': 356 vflag = 1; 357 break; 358 case 'x': 359 if ((cylspares = atoi(optarg)) < 0) 360 fatal("%s: bad spare sectors per cylinder", 361 optarg); 362 break; 363 case '?': 364 default: 365 usage(); 366 } 367 argc -= optind; 368 argv += optind; 369 370 if (argc != 2 && (mfs || argc != 1)) 371 usage(); 372 373 special = argv[0]; 374 /* Copy the NetBSD way of faking up a disk label */ 375 if (mfs && !strcmp(special, "swap")) { 376 /* 377 * it's an MFS, mounted on "swap." fake up a label. 378 * XXX XXX XXX 379 */ 380 fso = -1; /* XXX; normally done below. */ 381 382 memset(&mfsfakelabel, 0, sizeof(mfsfakelabel)); 383 mfsfakelabel.d_secsize = 512; 384 mfsfakelabel.d_nsectors = 64; 385 mfsfakelabel.d_ntracks = 16; 386 mfsfakelabel.d_ncylinders = 16; 387 mfsfakelabel.d_secpercyl = 1024; 388 mfsfakelabel.d_secperunit = 16384; 389 mfsfakelabel.d_rpm = 3600; 390 mfsfakelabel.d_interleave = 1; 391 mfsfakelabel.d_npartitions = 1; 392 mfsfakelabel.d_partitions[0].p_size = 16384; 393 mfsfakelabel.d_partitions[0].p_fsize = 1024; 394 mfsfakelabel.d_partitions[0].p_frag = 8; 395 mfsfakelabel.d_partitions[0].p_cpg = 16; 396 397 lp = &mfsfakelabel; 398 pp = &mfsfakelabel.d_partitions[0]; 399 400 goto havelabel; 401 } 402 403 cp = strrchr(special, '/'); 404 if (cp == 0) { 405 /* 406 * No path prefix; try /dev/%s. 407 */ 408 (void)snprintf(device, sizeof(device), "%s%s", _PATH_DEV, special); 409 special = device; 410 } 411 if (Nflag) { 412 fso = -1; 413 } else { 414 fso = open(special, O_WRONLY); 415 if (fso < 0) 416 fatal("%s: %s", special, strerror(errno)); 417 418 /* Bail if target special is mounted */ 419 n = getmntinfo(&mp, MNT_NOWAIT); 420 if (n == 0) 421 fatal("%s: getmntinfo: %s", special, strerror(errno)); 422 423 len = sizeof(_PATH_DEV) - 1; 424 s1 = special; 425 if (strncmp(_PATH_DEV, s1, len) == 0) 426 s1 += len; 427 428 while (--n >= 0) { 429 s2 = mp->f_mntfromname; 430 if (strncmp(_PATH_DEV, s2, len) == 0) { 431 s2 += len - 1; 432 *s2 = 'r'; 433 } 434 if (strcmp(s1, s2) == 0 || strcmp(s1, &s2[1]) == 0) 435 fatal("%s is mounted on %s", 436 special, mp->f_mntonname); 437 ++mp; 438 } 439 } 440 if (mfs && disktype != NULL) { 441 lp = (struct disklabel *)getdiskbyname(disktype); 442 if (lp == NULL) 443 fatal("%s: unknown disk type", disktype); 444 pp = &lp->d_partitions[1]; 445 } else { 446 fsi = open(special, O_RDONLY); 447 if (fsi < 0) 448 fatal("%s: %s", special, strerror(errno)); 449 if (fstat(fsi, &st) < 0) 450 fatal("%s: %s", special, strerror(errno)); 451 if ((st.st_mode & S_IFMT) != S_IFCHR && !mfs) 452 printf("%s: %s: not a character-special device\n", 453 progname, special); 454 cp = strchr(argv[0], '\0'); 455 if (cp == argv[0]) 456 fatal("null special file name"); 457 cp--; 458 if (!vflag && (*cp < 'a' || *cp > 'h') && !isdigit(*cp)) 459 fatal("%s: can't figure out file system partition", 460 argv[0]); 461 #ifdef COMPAT 462 if (!mfs && disktype == NULL) 463 disktype = argv[1]; 464 #endif 465 lp = getdisklabel(special, fsi); 466 if (vflag || isdigit(*cp)) 467 pp = &lp->d_partitions[0]; 468 else 469 pp = &lp->d_partitions[*cp - 'a']; 470 if (pp->p_size == 0) 471 fatal("%s: `%c' partition is unavailable", 472 argv[0], *cp); 473 if (pp->p_fstype == FS_BOOT) 474 fatal("%s: `%c' partition overlaps boot program", 475 argv[0], *cp); 476 } 477 havelabel: 478 if (fssize == 0) 479 fssize = pp->p_size; 480 if (fssize > pp->p_size && !mfs) 481 fatal("%s: maximum file system size on the `%c' partition is %d", 482 argv[0], *cp, pp->p_size); 483 if (rpm == 0) { 484 rpm = lp->d_rpm; 485 if (rpm <= 0) 486 rpm = 3600; 487 } 488 if (ntracks == 0) { 489 ntracks = lp->d_ntracks; 490 if (ntracks <= 0) 491 fatal("%s: no default #tracks", argv[0]); 492 } 493 if (nsectors == 0) { 494 nsectors = lp->d_nsectors; 495 if (nsectors <= 0) 496 fatal("%s: no default #sectors/track", argv[0]); 497 } 498 if (sectorsize == 0) { 499 sectorsize = lp->d_secsize; 500 if (sectorsize <= 0) 501 fatal("%s: no default sector size", argv[0]); 502 } 503 if (trackskew == -1) { 504 trackskew = lp->d_trackskew; 505 if (trackskew < 0) 506 trackskew = 0; 507 } 508 if (interleave == 0) { 509 interleave = lp->d_interleave; 510 if (interleave <= 0) 511 interleave = 1; 512 } 513 if (fsize == 0) { 514 fsize = pp->p_fsize; 515 if (fsize <= 0) 516 fsize = MAX(DFL_FRAGSIZE, lp->d_secsize); 517 } 518 if (bsize == 0) { 519 bsize = pp->p_frag * pp->p_fsize; 520 if (bsize <= 0) 521 bsize = MIN(DFL_BLKSIZE, 8 * fsize); 522 } 523 /* 524 * Maxcontig sets the default for the maximum number of blocks 525 * that may be allocated sequentially. With filesystem clustering 526 * it is possible to allocate contiguous blocks up to the maximum 527 * transfer size permitted by the controller or buffering. 528 */ 529 if (maxcontig == 0) 530 maxcontig = MAX(1, MAXPHYS / bsize - 1); 531 if (density == 0) 532 density = NFPI * fsize; 533 if (minfree < MINFREE && opt != FS_OPTSPACE) { 534 fprintf(stderr, "Warning: changing optimization to space "); 535 fprintf(stderr, "because minfree is less than %d%%\n", MINFREE); 536 opt = FS_OPTSPACE; 537 } 538 if (trackspares == -1) { 539 trackspares = lp->d_sparespertrack; 540 if (trackspares < 0) 541 trackspares = 0; 542 } 543 nphyssectors = nsectors + trackspares; 544 if (cylspares == -1) { 545 cylspares = lp->d_sparespercyl; 546 if (cylspares < 0) 547 cylspares = 0; 548 } 549 secpercyl = nsectors * ntracks - cylspares; 550 /* 551 * Only complain if -t or -u have been specified; the default 552 * case (4096 sectors per cylinder) is intended to disagree 553 * with the disklabel. 554 */ 555 if (t_or_u_flag && secpercyl != lp->d_secpercyl) 556 fprintf(stderr, "%s (%d) %s (%lu)\n", 557 "Warning: calculated sectors per cylinder", secpercyl, 558 "disagrees with disk label", (u_long)lp->d_secpercyl); 559 if (maxbpg == 0) 560 maxbpg = MAXBLKPG(bsize); 561 headswitch = lp->d_headswitch; 562 trackseek = lp->d_trkseek; 563 #ifdef notdef /* label may be 0 if faked up by kernel */ 564 bbsize = lp->d_bbsize; 565 sbsize = lp->d_sbsize; 566 #endif 567 oldpartition = *pp; 568 #ifdef tahoe 569 realsectorsize = sectorsize; 570 if (sectorsize != DEV_BSIZE) { /* XXX */ 571 int secperblk = DEV_BSIZE / sectorsize; 572 573 sectorsize = DEV_BSIZE; 574 nsectors /= secperblk; 575 nphyssectors /= secperblk; 576 secpercyl /= secperblk; 577 fssize /= secperblk; 578 pp->p_size /= secperblk; 579 } 580 #else 581 realsectorsize = sectorsize; 582 if (sectorsize != DEV_BSIZE) { /* XXX */ 583 int secperblk = sectorsize / DEV_BSIZE; 584 585 sectorsize = DEV_BSIZE; 586 nsectors *= secperblk; 587 nphyssectors *= secperblk; 588 secpercyl *= secperblk; 589 fssize *= secperblk; 590 pp->p_size *= secperblk; 591 } 592 #endif 593 if (mfs) { 594 mfs_mtpt = argv[1]; 595 if ( 596 stat(mfs_mtpt, &mfs_mtstat) < 0 || 597 !S_ISDIR(mfs_mtstat.st_mode) 598 ) { 599 fatal("mount point not dir: %s", mfs_mtpt); 600 } 601 } 602 mkfs(pp, special, fsi, fso); 603 #ifdef tahoe 604 if (realsectorsize != DEV_BSIZE) 605 pp->p_size *= DEV_BSIZE / realsectorsize; 606 #else 607 if (realsectorsize != DEV_BSIZE) 608 pp->p_size /= realsectorsize /DEV_BSIZE; 609 #endif 610 if (!Nflag && bcmp(pp, &oldpartition, sizeof(oldpartition))) 611 rewritelabel(special, fso, lp); 612 if (!Nflag) 613 close(fso); 614 close(fsi); 615 #ifdef MFS 616 if (mfs) { 617 struct mfs_args args; 618 619 snprintf(buf, sizeof(buf), "mfs:%d", getpid()); 620 args.fspec = buf; 621 args.export.ex_root = -2; 622 if (mntflags & MNT_RDONLY) 623 args.export.ex_flags = MNT_EXRDONLY; 624 else 625 args.export.ex_flags = 0; 626 args.base = membase; 627 args.size = fssize * sectorsize; 628 629 error = getvfsbyname("mfs", &vfc); 630 if (error && vfsisloadable("mfs")) { 631 if (vfsload("mfs")) 632 fatal("vfsload(mfs)"); 633 endvfsent(); /* flush cache */ 634 error = getvfsbyname("mfs", &vfc); 635 } 636 if (error) 637 fatal("mfs filesystem not available"); 638 639 if (mount(vfc.vfc_name, argv[1], mntflags, &args) < 0) 640 fatal("%s: %s", argv[1], strerror(errno)); 641 if(filename) { 642 munmap(membase,fssize * sectorsize); 643 } 644 } 645 #endif 646 exit(0); 647 } 648 649 #ifdef COMPAT 650 char lmsg[] = "%s: can't read disk label; disk type must be specified"; 651 #else 652 char lmsg[] = "%s: can't read disk label"; 653 #endif 654 655 struct disklabel * 656 getdisklabel(char *s, int fd) 657 { 658 static struct disklabel lab; 659 660 if (ioctl(fd, DIOCGDINFO, (char *)&lab) < 0) { 661 #ifdef COMPAT 662 if (disktype) { 663 struct disklabel *lp, *getdiskbyname(); 664 665 unlabeled++; 666 lp = getdiskbyname(disktype); 667 if (lp == NULL) 668 fatal("%s: unknown disk type", disktype); 669 return (lp); 670 } 671 #endif 672 warn("ioctl (GDINFO)"); 673 fatal(lmsg, s); 674 } 675 return (&lab); 676 } 677 678 rewritelabel(char *s, int fd, register struct disklabel *lp) 679 { 680 #ifdef COMPAT 681 if (unlabeled) 682 return; 683 #endif 684 lp->d_checksum = 0; 685 lp->d_checksum = dkcksum(lp); 686 if (ioctl(fd, DIOCWDINFO, (char *)lp) < 0) { 687 warn("ioctl (WDINFO)"); 688 fatal("%s: can't rewrite disk label", s); 689 } 690 } 691 692 /*VARARGS*/ 693 void 694 fatal(const char *fmt, ...) 695 { 696 va_list ap; 697 698 va_start(ap, fmt); 699 if (fcntl(STDERR_FILENO, F_GETFL) < 0) { 700 openlog(progname, LOG_CONS, LOG_DAEMON); 701 vsyslog(LOG_ERR, fmt, ap); 702 closelog(); 703 } else { 704 vwarnx(fmt, ap); 705 } 706 va_end(ap); 707 exit(1); 708 /*NOTREACHED*/ 709 } 710 711 static void 712 usage(void) 713 { 714 if (mfs) { 715 fprintf(stderr, 716 "usage: %s [ -fsoptions ] special-device mount-point\n", 717 progname); 718 } else 719 fprintf(stderr, 720 "usage: %s [ -fsoptions ] special-device%s\n", 721 progname, 722 #ifdef COMPAT 723 " [device-type]"); 724 #else 725 ""); 726 #endif 727 fprintf(stderr, "where fsoptions are:\n"); 728 fprintf(stderr, 729 "\t-N do not create file system, just print out parameters\n"); 730 fprintf(stderr, "\t-O create a 4.3BSD format filesystem\n"); 731 fprintf(stderr, "\t-S sector size\n"); 732 #ifdef COMPAT 733 fprintf(stderr, "\t-T disktype\n"); 734 #endif 735 fprintf(stderr, "\t-U enable soft updates\n"); 736 fprintf(stderr, "\t-a maximum contiguous blocks\n"); 737 fprintf(stderr, "\t-b block size\n"); 738 fprintf(stderr, "\t-c cylinders/group\n"); 739 fprintf(stderr, "\t-d rotational delay between contiguous blocks\n"); 740 fprintf(stderr, "\t-e maximum blocks per file in a cylinder group\n"); 741 fprintf(stderr, "\t-f frag size\n"); 742 fprintf(stderr, "\t-g average file size\n"); 743 fprintf(stderr, "\t-h average files per directory\n"); 744 fprintf(stderr, "\t-i number of bytes per inode\n"); 745 fprintf(stderr, "\t-k sector 0 skew, per track\n"); 746 fprintf(stderr, "\t-l hardware sector interleave\n"); 747 fprintf(stderr, "\t-m minimum free space %%\n"); 748 fprintf(stderr, "\t-n number of distinguished rotational positions\n"); 749 fprintf(stderr, "\t-o optimization preference (`space' or `time')\n"); 750 fprintf(stderr, "\t-p spare sectors per track\n"); 751 fprintf(stderr, "\t-s file system size (sectors)\n"); 752 fprintf(stderr, "\t-r revolutions/minute\n"); 753 fprintf(stderr, "\t-t tracks/cylinder\n"); 754 fprintf(stderr, "\t-u sectors/track\n"); 755 fprintf(stderr, 756 "\t-v do not attempt to determine partition name from device name\n"); 757 fprintf(stderr, "\t-x spare sectors per cylinder\n"); 758 exit(1); 759 } 760