newfs.c revision 1.79
1 /* $NetBSD: newfs.c,v 1.79 2004/03/07 00:17:04 dsl Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 1989, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 2002 Networks Associates Technology, Inc. 34 * All rights reserved. 35 * 36 * This software was developed for the FreeBSD Project by Marshall 37 * Kirk McKusick and Network Associates Laboratories, the Security 38 * Research Division of Network Associates, Inc. under DARPA/SPAWAR 39 * contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS 40 * research program 41 * 42 * Redistribution and use in source and binary forms, with or without 43 * modification, are permitted provided that the following conditions 44 * are met: 45 * 1. Redistributions of source code must retain the above copyright 46 * notice, this list of conditions and the following disclaimer. 47 * 2. Redistributions in binary form must reproduce the above copyright 48 * notice, this list of conditions and the following disclaimer in the 49 * documentation and/or other materials provided with the distribution. 50 * 3. All advertising materials mentioning features or use of this software 51 * must display the following acknowledgement: 52 * This product includes software developed by the University of 53 * California, Berkeley and its contributors. 54 * 4. Neither the name of the University nor the names of its contributors 55 * may be used to endorse or promote products derived from this software 56 * without specific prior written permission. 57 * 58 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 59 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 60 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 61 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 62 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 63 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 64 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 65 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 66 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 67 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 68 * SUCH DAMAGE. 69 */ 70 71 #include <sys/cdefs.h> 72 #ifndef lint 73 __COPYRIGHT("@(#) Copyright (c) 1983, 1989, 1993, 1994\n\ 74 The Regents of the University of California. All rights reserved.\n"); 75 #endif /* not lint */ 76 77 #ifndef lint 78 #if 0 79 static char sccsid[] = "@(#)newfs.c 8.13 (Berkeley) 5/1/95"; 80 #else 81 __RCSID("$NetBSD: newfs.c,v 1.79 2004/03/07 00:17:04 dsl Exp $"); 82 #endif 83 #endif /* not lint */ 84 85 /* 86 * newfs: friendly front end to mkfs 87 */ 88 #include <sys/param.h> 89 #include <sys/ioctl.h> 90 #include <sys/disklabel.h> 91 #include <sys/file.h> 92 #include <sys/mount.h> 93 #include <sys/sysctl.h> 94 #include <sys/wait.h> 95 96 #include <ufs/ufs/dir.h> 97 #include <ufs/ufs/dinode.h> 98 #include <ufs/ufs/ufsmount.h> 99 #include <ufs/ffs/fs.h> 100 101 #include <ctype.h> 102 #include <disktab.h> 103 #include <err.h> 104 #include <errno.h> 105 #include <grp.h> 106 #include <limits.h> 107 #include <paths.h> 108 #include <pwd.h> 109 #include <signal.h> 110 #include <stdint.h> 111 #include <stdio.h> 112 #include <stdlib.h> 113 #include <string.h> 114 #include <syslog.h> 115 #include <unistd.h> 116 #include <util.h> 117 118 #include "mntopts.h" 119 #include "dkcksum.h" 120 #include "extern.h" 121 122 struct mntopt mopts[] = { 123 MOPT_STDOPTS, 124 MOPT_ASYNC, 125 MOPT_UPDATE, 126 MOPT_GETARGS, 127 MOPT_NOATIME, 128 { NULL }, 129 }; 130 131 static struct disklabel *getdisklabel(char *, int); 132 static void rewritelabel(char *, int, struct disklabel *); 133 static gid_t mfs_group(const char *); 134 static uid_t mfs_user(const char *); 135 static int64_t strsuftoi64(const char *, const char *, int64_t, int64_t, int *); 136 static void usage(void); 137 int main(int, char *[]); 138 139 #define COMPAT /* allow non-labeled disks */ 140 141 /* 142 * The following two constants set the default block and fragment sizes. 143 * Both constants must be a power of 2 and meet the following constraints: 144 * MINBSIZE <= DESBLKSIZE <= MAXBSIZE 145 * sectorsize <= DESFRAGSIZE <= DESBLKSIZE 146 * DESBLKSIZE / DESFRAGSIZE <= 8 147 */ 148 /* 149 * For file systems smaller than SMALL_FSSIZE we use the S_DFL_* defaults, 150 * otherwise if less than MEDIUM_FSSIZE use M_DFL_*, otherwise use 151 * L_DFL_*. 152 */ 153 #define SMALL_FSSIZE (20*1024*2) 154 #define S_DFL_FRAGSIZE 512 155 #define MEDIUM_FSSIZE (1000*1024*2) 156 #define M_DFL_FRAGSIZE 1024 157 #define L_DFL_FRAGSIZE 2048 158 #define DFL_FRAG_BLK 8 159 160 /* Apple requires the fragment size to be at least APPLEUFS_DIRBLKSIZ 161 * but the block size cannot be larger than Darwin's PAGE_SIZE. See 162 * the mount check in Darwin's ffs_mountfs for an explanation. 163 */ 164 #define APPLEUFS_DFL_FRAGSIZE APPLEUFS_DIRBLKSIZ /* 1024 */ 165 #define APPLEUFS_DFL_BLKSIZE 4096 /* default Darwin PAGE_SIZE */ 166 167 /* 168 * Default sector size. 169 */ 170 #define DFL_SECSIZE 512 171 172 /* 173 * MAXBLKPG determines the maximum number of data blocks which are 174 * placed in a single cylinder group. The default is one indirect 175 * block worth of data blocks. 176 */ 177 #define MAXBLKPG_UFS1(bsize) ((bsize) / sizeof(int32_t)) 178 #define MAXBLKPG_UFS2(bsize) ((bsize) / sizeof(int64_t)) 179 180 /* 181 * Each file system has a number of inodes statically allocated. 182 * We allocate one inode slot per NFPI fragments, expecting this 183 * to be far more than we will ever need. 184 */ 185 #define NFPI 4 186 187 188 int mfs; /* run as the memory based filesystem */ 189 int Nflag; /* run without writing file system */ 190 int Oflag = 1; /* format as an 4.3BSD file system */ 191 int64_t fssize; /* file system size */ 192 int sectorsize; /* bytes/sector */ 193 int fsize = 0; /* fragment size */ 194 int bsize = 0; /* block size */ 195 int maxbsize = 0; /* maximum clustering */ 196 int minfree = MINFREE; /* free space threshold */ 197 int opt = DEFAULTOPT; /* optimization preference (space or time) */ 198 int density; /* number of bytes per inode */ 199 int num_inodes; /* number of inoder (overrides density) */ 200 int maxcontig = 0; /* max contiguous blocks to allocate */ 201 int maxbpg; /* maximum blocks per file in a cyl group */ 202 int avgfilesize = AVFILESIZ;/* expected average file size */ 203 int avgfpdir = AFPDIR; /* expected number of files per directory */ 204 int mntflags = MNT_ASYNC; /* flags to be passed to mount */ 205 u_long memleft; /* virtual memory available */ 206 caddr_t membase; /* start address of memory based filesystem */ 207 int needswap; /* Filesystem not in native byte order */ 208 #ifdef COMPAT 209 char *disktype; 210 int unlabeled; 211 #endif 212 char *appleufs_volname = 0; /* Apple UFS volume name */ 213 int isappleufs = 0; 214 215 char device[MAXPATHLEN]; 216 217 int 218 main(int argc, char *argv[]) 219 { 220 struct partition *pp = NULL; 221 struct disklabel *lp = NULL; 222 struct partition oldpartition; 223 struct statfs *mp; 224 struct stat sb; 225 int ch, fsi, fso, len, n, Fflag, Iflag, Zflag; 226 uint ptn = 0; /* gcc -Wuninitialised */ 227 char *cp, *s1, *s2, *special; 228 const char *opstring; 229 int byte_sized = 0; 230 #ifdef MFS 231 struct mfs_args args; 232 char mountfromname[100]; 233 pid_t pid, res; 234 struct statfs sf; 235 int status; 236 #endif 237 mode_t mfsmode = 01777; /* default mode for a /tmp-type directory */ 238 uid_t mfsuid = 0; /* user root */ 239 gid_t mfsgid = 0; /* group wheel */ 240 241 cp = NULL; 242 fsi = fso = -1; 243 Fflag = Iflag = Zflag = 0; 244 if (strstr(getprogname(), "mfs")) { 245 mfs = 1; 246 Nflag++; 247 } 248 249 opstring = mfs ? 250 "NT:a:b:c:d:e:f:g:h:i:m:n:o:p:s:u:" : 251 "B:FINO:S:T:Za:b:c:d:e:f:g:h:i:l:m:n:o:p:r:s:u:v:"; 252 while ((ch = getopt(argc, argv, opstring)) != -1) 253 switch (ch) { 254 case 'B': 255 if (strcmp(optarg, "be") == 0) { 256 #if BYTE_ORDER == LITTLE_ENDIAN 257 needswap = 1; 258 #endif 259 } else if (strcmp(optarg, "le") == 0) { 260 #if BYTE_ORDER == BIG_ENDIAN 261 needswap = 1; 262 #endif 263 } else 264 usage(); 265 break; 266 case 'F': 267 Fflag = 1; 268 break; 269 case 'I': 270 Iflag = 1; 271 break; 272 case 'N': 273 Nflag = 1; 274 break; 275 case 'O': 276 Oflag = strsuftoi64("format", optarg, 0, 2, NULL); 277 break; 278 case 'S': 279 sectorsize = strsuftoi64("sector size", 280 optarg, 1, INT_MAX, NULL); 281 break; 282 #ifdef COMPAT 283 case 'T': 284 disktype = optarg; 285 break; 286 #endif 287 case 'Z': 288 Zflag = 1; 289 break; 290 case 'a': 291 maxcontig = strsuftoi64("maximum contiguous blocks", 292 optarg, 1, INT_MAX, NULL); 293 break; 294 case 'b': 295 bsize = strsuftoi64("block size", 296 optarg, MINBSIZE, MAXBSIZE, NULL); 297 break; 298 case 'c': /* was cylinders per group... */ 299 break; 300 case 'd': 301 maxbsize = strsuftoi64("maximum extent size", 302 optarg, 0, INT_MAX, NULL); 303 break; 304 case 'e': 305 maxbpg = strsuftoi64( 306 "blocks per file in a cylinder group", 307 optarg, 1, INT_MAX, NULL); 308 break; 309 case 'f': 310 fsize = strsuftoi64("fragment size", 311 optarg, 1, MAXBSIZE, NULL); 312 break; 313 case 'g': 314 if (mfs) 315 mfsgid = mfs_group(optarg); 316 else { 317 avgfilesize = strsuftoi64("average file size", 318 optarg, 1, INT_MAX, NULL); 319 } 320 break; 321 case 'h': 322 avgfpdir = strsuftoi64("expected files per directory", 323 optarg, 1, INT_MAX, NULL); 324 break; 325 case 'i': 326 density = strsuftoi64("bytes per inode", 327 optarg, 1, INT_MAX, NULL); 328 break; 329 case 'm': 330 minfree = strsuftoi64("free space %", 331 optarg, 0, 99, NULL); 332 break; 333 case 'n': 334 num_inodes = strsuftoi64("number of inodes", 335 optarg, 1, INT_MAX, NULL); 336 break; 337 case 'o': 338 if (mfs) 339 getmntopts(optarg, mopts, &mntflags, 0); 340 else { 341 if (strcmp(optarg, "space") == 0) 342 opt = FS_OPTSPACE; 343 else if (strcmp(optarg, "time") == 0) 344 opt = FS_OPTTIME; 345 else 346 errx(1, "%s %s", 347 "unknown optimization preference: ", 348 "use `space' or `time'."); 349 } 350 break; 351 case 'p': 352 if (mfs) { 353 if ((mfsmode = strtol(optarg, NULL, 8)) <= 0) 354 errx(1, "bad mode `%s'", optarg); 355 } else 356 errx(1, "unknown option 'p'"); 357 break; 358 case 's': 359 fssize = strsuftoi64("file system size", 360 optarg, INT64_MIN, INT64_MAX, &byte_sized); 361 break; 362 case 'u': 363 if (mfs) 364 mfsuid = mfs_user(optarg); 365 else 366 errx(1, "deprecated option 'u'"); 367 break; 368 case 'v': 369 appleufs_volname = optarg; 370 if (strchr(appleufs_volname, ':') || strchr(appleufs_volname, '/')) 371 errx(1,"Apple UFS volume name cannot contain ':' or '/'"); 372 if (appleufs_volname[0] == '\0') 373 errx(1,"Apple UFS volume name cannot be zero length"); 374 isappleufs = 1; 375 break; 376 case '?': 377 default: 378 usage(); 379 } 380 argc -= optind; 381 argv += optind; 382 383 #ifdef MFS 384 /* This is enough to get through the correct kernel code paths */ 385 memset(&args, 0, sizeof args); 386 args.fspec = mountfromname; 387 if (mntflags & (MNT_GETARGS | MNT_UPDATE)) 388 goto doit; 389 #endif 390 391 if (argc != 2 && (mfs || argc != 1)) 392 usage(); 393 394 memset(&oldpartition, 0, sizeof oldpartition); 395 memset(&sb, 0, sizeof sb); 396 special = argv[0]; 397 if (Fflag || mfs) { 398 /* 399 * It's a file system image or an MFS, 400 * no label, use fixed default for sectorsize. 401 */ 402 if (sectorsize == 0) 403 sectorsize = DFL_SECSIZE; 404 405 if (!mfs) { /* creating image in a regular file */ 406 int fl; 407 if (Nflag) 408 fl = O_RDONLY; 409 else { 410 if (fssize > 0) 411 fl = O_RDWR | O_CREAT; 412 else 413 fl = O_RDWR; 414 } 415 fsi = open(special, fl, 0777); 416 if (fsi == -1) 417 err(1, "can't open file %s", special); 418 if (fstat(fsi, &sb) == -1) 419 err(1, "can't fstat opened %s", special); 420 if (!Nflag) 421 fso = fsi; 422 } 423 } else { /* !Fflag && !mfs */ 424 fsi = opendisk(special, O_RDONLY, device, sizeof(device), 0); 425 special = device; 426 if (fsi < 0 || fstat(fsi, &sb) == -1) 427 err(1, "%s: open for read", special); 428 429 if (!Nflag) { 430 fso = open(special, O_WRONLY, 0); 431 if (fso < 0) 432 err(1, "%s: open for write", special); 433 434 /* Bail if target special is mounted */ 435 n = getmntinfo(&mp, MNT_NOWAIT); 436 if (n == 0) 437 err(1, "%s: getmntinfo", special); 438 439 len = sizeof(_PATH_DEV) - 1; 440 s1 = special; 441 if (strncmp(_PATH_DEV, s1, len) == 0) 442 s1 += len; 443 444 while (--n >= 0) { 445 s2 = mp->f_mntfromname; 446 if (strncmp(_PATH_DEV, s2, len) == 0) { 447 s2 += len - 1; 448 *s2 = 'r'; 449 } 450 if (strcmp(s1, s2) == 0 || 451 strcmp(s1, &s2[1]) == 0) 452 errx(1, "%s is mounted on %s", 453 special, mp->f_mntonname); 454 ++mp; 455 } 456 } 457 458 #ifdef COMPAT 459 if (disktype == NULL) 460 disktype = argv[1]; 461 #endif 462 lp = getdisklabel(special, fsi); 463 if (sectorsize == 0) { 464 sectorsize = lp->d_secsize; 465 if (sectorsize <= 0) 466 errx(1, "no default sector size"); 467 } 468 469 ptn = strchr(special, '\0')[-1] - 'a'; 470 if (ptn < lp->d_npartitions && ptn == DISKPART(sb.st_rdev)) { 471 /* Assume partition really does match the label */ 472 pp = &lp->d_partitions[ptn]; 473 oldpartition = *pp; 474 if (pp->p_size == 0) 475 errx(1, "`%c' partition is unavailable", 476 'a' + ptn); 477 if (pp->p_fstype == FS_APPLEUFS) 478 isappleufs = 1; 479 if (!Iflag) { 480 if (isappleufs) { 481 if (pp->p_fstype != FS_APPLEUFS) 482 errx(1, "`%c' partition type is not `Apple UFS'", 'a' + ptn); 483 } else { 484 if (pp->p_fstype != FS_BSDFFS) 485 errx(1, "`%c' partition type is not `4.2BSD'", 'a' + ptn); 486 } 487 } 488 } 489 } /* !Fflag && !mfs */ 490 491 if (byte_sized) 492 fssize /= sectorsize; 493 if (fssize <= 0) { 494 if (sb.st_size != 0) 495 fssize += sb.st_size / sectorsize; 496 else 497 fssize += oldpartition.p_size; 498 if (fssize <= 0) 499 errx(1, "Unable to determine file system size"); 500 } 501 502 if (pp != NULL && fssize > pp->p_size) 503 errx(1, "maximum file system size on `%s' is %d sectors", 504 special, pp->p_size); 505 506 /* XXXLUKEM: only ftruncate() regular files ? (dsl: or at all?) */ 507 if (Fflag && fso != -1 508 && ftruncate(fso, (off_t)fssize * sectorsize) == -1) 509 err(1, "can't ftruncate %s to %" PRId64, special, fssize); 510 511 if (Zflag && fso != -1) { /* pre-zero (and de-sparce) the file */ 512 char *buf; 513 int bufsize, i; 514 off_t bufrem; 515 struct statfs sfs; 516 517 if (fstatfs(fso, &sfs) == -1) { 518 warn("can't fstatfs `%s'", special); 519 bufsize = 8192; 520 } else 521 bufsize = sfs.f_iosize; 522 523 if ((buf = calloc(1, bufsize)) == NULL) 524 err(1, "can't malloc buffer of %d", 525 bufsize); 526 bufrem = fssize * sectorsize; 527 printf( 528 "Creating file system image in `%s', size %lld bytes, in %d byte chunks.\n", 529 special, (long long)bufrem, bufsize); 530 while (bufrem > 0) { 531 i = write(fso, buf, MIN(bufsize, bufrem)); 532 if (i == -1) 533 err(1, "writing image"); 534 bufrem -= i; 535 } 536 free(buf); 537 } 538 539 /* Sort out fragment and block sizes */ 540 if (fsize == 0) { 541 fsize = bsize / DFL_FRAG_BLK; 542 if (fsize == 0) 543 fsize = oldpartition.p_fsize; 544 if (fsize <= 0) { 545 if (isappleufs) { 546 fsize = APPLEUFS_DFL_FRAGSIZE; 547 } else { 548 if (fssize < SMALL_FSSIZE) 549 fsize = S_DFL_FRAGSIZE; 550 else if (fssize < MEDIUM_FSSIZE) 551 fsize = M_DFL_FRAGSIZE; 552 else 553 fsize = L_DFL_FRAGSIZE; 554 if (fsize < sectorsize) 555 fsize = sectorsize; 556 } 557 } 558 } 559 if (bsize == 0) { 560 bsize = oldpartition.p_frag * oldpartition.p_fsize; 561 if (bsize <= 0) { 562 if (isappleufs) 563 bsize = APPLEUFS_DFL_BLKSIZE; 564 else 565 bsize = DFL_FRAG_BLK * fsize; 566 } 567 } 568 569 if (isappleufs && (fsize < APPLEUFS_DFL_FRAGSIZE)) { 570 warnx("Warning: chosen fsize of %d is less than Apple UFS minimum of %d", 571 fsize, APPLEUFS_DFL_FRAGSIZE); 572 } 573 if (isappleufs && (bsize > APPLEUFS_DFL_BLKSIZE)) { 574 warnx("Warning: chosen bsize of %d is greater than Apple UFS maximum of %d", 575 bsize, APPLEUFS_DFL_BLKSIZE); 576 } 577 578 /* 579 * Maxcontig sets the default for the maximum number of blocks 580 * that may be allocated sequentially. With filesystem clustering 581 * it is possible to allocate contiguous blocks up to the maximum 582 * transfer size permitted by the controller or buffering. 583 */ 584 if (maxcontig == 0) 585 maxcontig = MAX(1, MIN(MAXPHYS, MAXBSIZE) / bsize); 586 if (density == 0) 587 density = NFPI * fsize; 588 if (minfree < MINFREE && opt != FS_OPTSPACE) { 589 warnx("%s %s %d%%", "Warning: changing optimization to space", 590 "because minfree is less than", MINFREE); 591 opt = FS_OPTSPACE; 592 } 593 if (maxbpg == 0) { 594 if (Oflag <= 1) 595 maxbpg = MAXBLKPG_UFS1(bsize); 596 else 597 maxbpg = MAXBLKPG_UFS2(bsize); 598 } 599 mkfs(pp, special, fsi, fso, mfsmode, mfsuid, mfsgid); 600 if (!Nflag && pp != NULL 601 && memcmp(pp, &oldpartition, sizeof(oldpartition))) 602 rewritelabel(special, fso, lp); 603 if (fsi != -1 && fsi != fso) 604 close(fsi); 605 if (fso != -1) 606 close(fso); 607 #ifdef MFS 608 if (mfs) { 609 610 switch (pid = fork()) { 611 case -1: 612 perror("mfs"); 613 exit(10); 614 case 0: 615 (void)snprintf(mountfromname, sizeof(mountfromname), 616 "mfs:%d", getpid()); 617 break; 618 default: 619 (void)snprintf(mountfromname, sizeof(mountfromname), 620 "mfs:%d", pid); 621 for (;;) { 622 /* 623 * spin until the mount succeeds 624 * or the child exits 625 */ 626 usleep(1); 627 628 /* 629 * XXX Here is a race condition: another process 630 * can mount a filesystem which hides our 631 * ramdisk before we see the success. 632 */ 633 if (statfs(argv[1], &sf) < 0) 634 err(88, "statfs %s", argv[1]); 635 if (!strcmp(sf.f_mntfromname, mountfromname) && 636 !strncmp(sf.f_mntonname, argv[1], 637 MNAMELEN) && 638 !strcmp(sf.f_fstypename, "mfs")) 639 exit(0); 640 641 res = waitpid(pid, &status, WNOHANG); 642 if (res == -1) 643 err(11, "waitpid"); 644 if (res != pid) 645 continue; 646 if (WIFEXITED(status)) { 647 if (WEXITSTATUS(status) == 0) 648 exit(0); 649 errx(1, "%s: mount: %s", argv[1], 650 strerror(WEXITSTATUS(status))); 651 } else 652 errx(11, "abnormal termination"); 653 } 654 /* NOTREACHED */ 655 } 656 657 (void) setsid(); 658 (void) close(0); 659 (void) close(1); 660 (void) close(2); 661 (void) chdir("/"); 662 663 args.export.ex_root = -2; 664 if (mntflags & MNT_RDONLY) 665 args.export.ex_flags = MNT_EXRDONLY; 666 else 667 args.export.ex_flags = 0; 668 args.base = membase; 669 args.size = fssize * sectorsize; 670 doit: 671 if (mount(MOUNT_MFS, argv[1], mntflags, &args) < 0) { 672 if (mntflags & (MNT_GETARGS | MNT_UPDATE)) 673 err(1, "mount `%s' failed", argv[1]); 674 exit(errno); /* parent prints message */ 675 } 676 if (mntflags & MNT_GETARGS) 677 printf("base=%p, size=%ld\n", args.base, args.size); 678 } 679 #endif 680 exit(0); 681 } 682 683 #ifdef COMPAT 684 const char lmsg[] = "%s: can't read disk label; disk type must be specified"; 685 #else 686 const char lmsg[] = "%s: can't read disk label"; 687 #endif 688 689 static struct disklabel * 690 getdisklabel(char *s, int fd) 691 { 692 static struct disklabel lab; 693 694 #ifdef COMPAT 695 if (disktype) { 696 struct disklabel *lp; 697 698 unlabeled++; 699 lp = getdiskbyname(disktype); 700 if (lp == NULL) 701 errx(1, "%s: unknown disk type", disktype); 702 return (lp); 703 } 704 #endif 705 if (ioctl(fd, DIOCGDINFO, &lab) < 0) { 706 warn("ioctl (GDINFO)"); 707 errx(1, lmsg, s); 708 } 709 return (&lab); 710 } 711 712 static void 713 rewritelabel(char *s, int fd, struct disklabel *lp) 714 { 715 #ifdef COMPAT 716 if (unlabeled) 717 return; 718 #endif 719 lp->d_checksum = 0; 720 lp->d_checksum = dkcksum(lp); 721 if (ioctl(fd, DIOCWDINFO, (char *)lp) < 0) { 722 if (errno == ESRCH) 723 return; 724 warn("ioctl (WDINFO)"); 725 errx(1, "%s: can't rewrite disk label", s); 726 } 727 #if __vax__ 728 if (lp->d_type == DTYPE_SMD && lp->d_flags & D_BADSECT) { 729 int i; 730 int cfd; 731 daddr_t alt; 732 off_t loff; 733 char specname[64]; 734 char blk[1024]; 735 char *cp; 736 737 /* 738 * Make name for 'c' partition. 739 */ 740 strlcpy(specname, s, sizeof(specname)); 741 cp = specname + strlen(specname) - 1; 742 if (!isdigit(*cp)) 743 *cp = 'c'; 744 cfd = open(specname, O_WRONLY); 745 if (cfd < 0) 746 err(1, "%s: open", specname); 747 if ((loff = getlabeloffset()) < 0) 748 err(1, "getlabeloffset()"); 749 memset(blk, 0, sizeof(blk)); 750 *(struct disklabel *)(blk + loff) = *lp; 751 alt = lp->d_ncylinders * lp->d_secpercyl - lp->d_nsectors; 752 for (i = 1; i < 11 && i < lp->d_nsectors; i += 2) { 753 off_t offset; 754 755 offset = alt + i; 756 offset *= lp->d_secsize; 757 if (lseek(cfd, offset, SEEK_SET) == -1) 758 err(1, "lseek to badsector area: "); 759 if (write(cfd, blk, lp->d_secsize) < lp->d_secsize) 760 warn("alternate label %d write", i/2); 761 } 762 close(cfd); 763 } 764 #endif 765 } 766 767 static gid_t 768 mfs_group(const char *gname) 769 { 770 struct group *gp; 771 772 if (!(gp = getgrnam(gname)) && !isdigit((unsigned char)*gname)) 773 errx(1, "unknown gname %s", gname); 774 return gp ? gp->gr_gid : atoi(gname); 775 } 776 777 static uid_t 778 mfs_user(const char *uname) 779 { 780 struct passwd *pp; 781 782 if (!(pp = getpwnam(uname)) && !isdigit((unsigned char)*uname)) 783 errx(1, "unknown user %s", uname); 784 return pp ? pp->pw_uid : atoi(uname); 785 } 786 787 static int64_t 788 strsuftoi64(const char *desc, const char *arg, int64_t min, int64_t max, int *num_suffix) 789 { 790 int64_t result, r1; 791 int shift = 0; 792 char *ep; 793 794 errno = 0; 795 r1 = strtoll(arg, &ep, 10); 796 if (ep[0] != '\0' && ep[1] != '\0') 797 errx(1, "%s `%s' is not a valid number.", desc, arg); 798 switch (ep[0]) { 799 case '\0': 800 case 's': case 'S': 801 if (num_suffix != NULL) 802 *num_suffix = 0; 803 break; 804 case 'g': case 'G': 805 shift += 10; 806 /* FALLTHROUGH */ 807 case 'm': case 'M': 808 shift += 10; 809 /* FALLTHROUGH */ 810 case 'k': case 'K': 811 shift += 10; 812 /* FALLTHROUGH */ 813 case 'b': case 'B': 814 if (num_suffix != NULL) 815 *num_suffix = 1; 816 break; 817 default: 818 errx(1, "`%s' is not a valid suffix for %s.", ep, desc); 819 } 820 result = r1 << shift; 821 if (errno == ERANGE || result >> shift != r1) 822 errx(1, "%s `%s' is too large to convert.", desc, arg); 823 if (result < min) 824 errx(1, "%s `%s' (%" PRId64 ") is less than the minimum (%" PRId64 ").", 825 desc, arg, result, min); 826 if (result > max) 827 errx(1, "%s `%s' (%" PRId64 ") is greater than the maximum (%" PRId64 ").", 828 desc, arg, result, max); 829 return result; 830 } 831 832 #define NEWFS 1 833 #define MFS_MOUNT 2 834 #define BOTH NEWFS | MFS_MOUNT 835 836 struct help_strings { 837 int flags; 838 const char *str; 839 } const help_strings[] = { 840 { NEWFS, "-B byteorder\tbyte order (`be' or `le')" }, 841 { NEWFS, "-F \t\tcreate file system image in regular file" }, 842 { NEWFS, "-I \t\tdo not check that the file system type is '4.2BSD'" }, 843 { BOTH, "-N \t\tdo not create file system, just print out " 844 "parameters" }, 845 { NEWFS, "-O N\t\tfilesystem format: 0 ==> 4.3BSD, 1 ==> FFS, 2 ==> UFS2" }, 846 { NEWFS, "-S secsize\tsector size" }, 847 #ifdef COMPAT 848 { NEWFS, "-T disktype\tdisk type" }, 849 #endif 850 { NEWFS, "-Z \t\tpre-zero the image file" }, 851 { BOTH, "-a maxcontig\tmaximum contiguous blocks" }, 852 { BOTH, "-b bsize\tblock size" }, 853 { BOTH, "-c blocks\tblocks per cylinder group" }, 854 { BOTH, "-d maxbsize\tmaximum extent size" }, 855 { BOTH, "-e maxbpg\tmaximum blocks per file in a cylinder group" 856 }, 857 { BOTH, "-f fsize\tfrag size" }, 858 { NEWFS, "-g avgfilesize\taverage file size" }, 859 { MFS_MOUNT, "-g groupname\tgroup name of mount point" }, 860 { BOTH, "-h avgfpdir\taverage files per directory" }, 861 { BOTH, "-i density\tnumber of bytes per inode" }, 862 { BOTH, "-m minfree\tminimum free space %%" }, 863 { BOTH, "-n inodes\tnumber of inodes (overrides -i density)" }, 864 { BOTH, "-o optim\toptimization preference (`space' or `time')" 865 }, 866 { MFS_MOUNT, "-p perm\t\tpermissions (in octal)" }, 867 { BOTH, "-s fssize\tfile system size (sectors)" }, 868 { MFS_MOUNT, "-u username\tuser name of mount point" }, 869 { NEWFS, "-v volname\tApple UFS volume name" }, 870 { 0, NULL } 871 }; 872 873 static void 874 usage(void) 875 { 876 int match; 877 const struct help_strings *hs; 878 879 if (mfs) { 880 fprintf(stderr, 881 "usage: %s [ fsoptions ] special-device mount-point\n", 882 getprogname()); 883 } else 884 fprintf(stderr, 885 "usage: %s [ fsoptions ] special-device%s\n", 886 getprogname(), 887 #ifdef COMPAT 888 " [disk-type]"); 889 #else 890 ""); 891 #endif 892 fprintf(stderr, "where fsoptions are:\n"); 893 894 match = mfs ? MFS_MOUNT : NEWFS; 895 for (hs = help_strings; hs->flags != 0; hs++) 896 if (hs->flags & match) 897 fprintf(stderr, "\t%s\n", hs->str); 898 exit(1); 899 } 900
Indexes created Fri Sep 26 08:10:20 GMT 2025