1 /* 2 * Copyright (c) 2002 Networks Associates Technology, Inc. 3 * All rights reserved. 4 * 5 * This software was developed for the FreeBSD Project by Marshall 6 * Kirk McKusick and Network Associates Laboratories, the Security 7 * Research Division of Network Associates, Inc. under DARPA/SPAWAR 8 * contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS 9 * research program. 10 * 11 * Copyright (c) 1983, 1989, 1993, 1994 12 * The Regents of the University of California. All rights reserved. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 */ 38 39 #if 0 40 #ifndef lint 41 static const char copyright[] = 42 "@(#) Copyright (c) 1983, 1989, 1993, 1994\n\ 43 The Regents of the University of California. All rights reserved.\n"; 44 #endif /* not lint */ 45 46 #ifndef lint 47 static char sccsid[] = "@(#)newfs.c 8.13 (Berkeley) 5/1/95"; 48 #endif /* not lint */ 49 #endif 50 #include <sys/cdefs.h> 51 __FBSDID("$FreeBSD$"); 52 53 /* 54 * newfs: friendly front end to mkfs 55 */ 56 #include <sys/param.h> 57 #include <sys/stat.h> 58 #include <sys/disk.h> 59 #include <sys/disklabel.h> 60 #include <sys/file.h> 61 #include <sys/mount.h> 62 63 #include <ufs/ufs/dir.h> 64 #include <ufs/ufs/dinode.h> 65 #include <ufs/ffs/fs.h> 66 #include <ufs/ufs/ufsmount.h> 67 68 #include <ctype.h> 69 #include <err.h> 70 #include <errno.h> 71 #include <inttypes.h> 72 #include <paths.h> 73 #include <stdarg.h> 74 #include <stdio.h> 75 #include <stdlib.h> 76 #include <string.h> 77 #include <syslog.h> 78 #include <unistd.h> 79 80 #include <libutil.h> 81 82 #include "newfs.h" 83 84 int Eflag; /* Erase previous disk contents */ 85 int Lflag; /* add a volume label */ 86 int Nflag; /* run without writing file system */ 87 int Oflag = 2; /* file system format (1 => UFS1, 2 => UFS2) */ 88 int Rflag; /* regression test */ 89 int Uflag; /* enable soft updates for file system */ 90 int jflag; /* enable soft updates journaling for filesys */ 91 int Xflag = 0; /* exit in middle of newfs for testing */ 92 int Jflag; /* enable gjournal for file system */ 93 int lflag; /* enable multilabel for file system */ 94 int nflag; /* do not create .snap directory */ 95 int tflag; /* enable TRIM */ 96 intmax_t fssize; /* file system size */ 97 off_t mediasize; /* device size */ 98 int sectorsize; /* bytes/sector */ 99 int realsectorsize; /* bytes/sector in hardware */ 100 int fsize = 0; /* fragment size */ 101 int bsize = 0; /* block size */ 102 int maxbsize = 0; /* maximum clustering */ 103 int maxblkspercg = MAXBLKSPERCG; /* maximum blocks per cylinder group */ 104 int minfree = MINFREE; /* free space threshold */ 105 int metaspace; /* space held for metadata blocks */ 106 int opt = DEFAULTOPT; /* optimization preference (space or time) */ 107 int density; /* number of bytes per inode */ 108 int maxcontig = 0; /* max contiguous blocks to allocate */ 109 int maxbpg; /* maximum blocks per file in a cyl group */ 110 int avgfilesize = AVFILESIZ;/* expected average file size */ 111 int avgfilesperdir = AFPDIR;/* expected number of files per directory */ 112 u_char *volumelabel = NULL; /* volume label for filesystem */ 113 struct uufsd disk; /* libufs disk structure */ 114 115 static char device[MAXPATHLEN]; 116 static u_char bootarea[BBSIZE]; 117 static int is_file; /* work on a file, not a device */ 118 static char *dkname; 119 static char *disktype; 120 121 static void getfssize(intmax_t *, const char *p, intmax_t, intmax_t); 122 static struct disklabel *getdisklabel(char *s); 123 static void usage(void); 124 static int expand_number_int(const char *buf, int *num); 125 126 ufs2_daddr_t part_ofs; /* partition offset in blocks, used with files */ 127 128 int 129 main(int argc, char *argv[]) 130 { 131 struct partition *pp; 132 struct disklabel *lp; 133 struct stat st; 134 char *cp, *special; 135 intmax_t reserved; 136 int ch, i, rval; 137 char part_name; /* partition name, default to full disk */ 138 139 part_name = 'c'; 140 reserved = 0; 141 while ((ch = getopt(argc, argv, 142 "EJL:NO:RS:T:UXa:b:c:d:e:f:g:h:i:jk:lm:no:p:r:s:t")) != -1) 143 switch (ch) { 144 case 'E': 145 Eflag = 1; 146 break; 147 case 'J': 148 Jflag = 1; 149 break; 150 case 'L': 151 volumelabel = optarg; 152 i = -1; 153 while (isalnum(volumelabel[++i])); 154 if (volumelabel[i] != '\0') { 155 errx(1, "bad volume label. Valid characters are alphanumerics."); 156 } 157 if (strlen(volumelabel) >= MAXVOLLEN) { 158 errx(1, "bad volume label. Length is longer than %d.", 159 MAXVOLLEN); 160 } 161 Lflag = 1; 162 break; 163 case 'N': 164 Nflag = 1; 165 break; 166 case 'O': 167 if ((Oflag = atoi(optarg)) < 1 || Oflag > 2) 168 errx(1, "%s: bad file system format value", 169 optarg); 170 break; 171 case 'R': 172 Rflag = 1; 173 break; 174 case 'S': 175 rval = expand_number_int(optarg, §orsize); 176 if (rval < 0 || sectorsize <= 0) 177 errx(1, "%s: bad sector size", optarg); 178 break; 179 case 'T': 180 disktype = optarg; 181 break; 182 case 'j': 183 jflag = 1; 184 /* fall through to enable soft updates */ 185 case 'U': 186 Uflag = 1; 187 break; 188 case 'X': 189 Xflag++; 190 break; 191 case 'a': 192 rval = expand_number_int(optarg, &maxcontig); 193 if (rval < 0 || maxcontig <= 0) 194 errx(1, "%s: bad maximum contiguous blocks", 195 optarg); 196 break; 197 case 'b': 198 rval = expand_number_int(optarg, &bsize); 199 if (rval < 0) 200 errx(1, "%s: bad block size", 201 optarg); 202 if (bsize < MINBSIZE) 203 errx(1, "%s: block size too small, min is %d", 204 optarg, MINBSIZE); 205 if (bsize > MAXBSIZE) 206 errx(1, "%s: block size too large, max is %d", 207 optarg, MAXBSIZE); 208 break; 209 case 'c': 210 rval = expand_number_int(optarg, &maxblkspercg); 211 if (rval < 0 || maxblkspercg <= 0) 212 errx(1, "%s: bad blocks per cylinder group", 213 optarg); 214 break; 215 case 'd': 216 rval = expand_number_int(optarg, &maxbsize); 217 if (rval < 0 || maxbsize < MINBSIZE) 218 errx(1, "%s: bad extent block size", optarg); 219 break; 220 case 'e': 221 rval = expand_number_int(optarg, &maxbpg); 222 if (rval < 0 || maxbpg <= 0) 223 errx(1, "%s: bad blocks per file in a cylinder group", 224 optarg); 225 break; 226 case 'f': 227 rval = expand_number_int(optarg, &fsize); 228 if (rval < 0 || fsize <= 0) 229 errx(1, "%s: bad fragment size", optarg); 230 break; 231 case 'g': 232 rval = expand_number_int(optarg, &avgfilesize); 233 if (rval < 0 || avgfilesize <= 0) 234 errx(1, "%s: bad average file size", optarg); 235 break; 236 case 'h': 237 rval = expand_number_int(optarg, &avgfilesperdir); 238 if (rval < 0 || avgfilesperdir <= 0) 239 errx(1, "%s: bad average files per dir", optarg); 240 break; 241 case 'i': 242 rval = expand_number_int(optarg, &density); 243 if (rval < 0 || density <= 0) 244 errx(1, "%s: bad bytes per inode", optarg); 245 break; 246 case 'l': 247 lflag = 1; 248 break; 249 case 'k': 250 if ((metaspace = atoi(optarg)) < 0) 251 errx(1, "%s: bad metadata space %%", optarg); 252 if (metaspace == 0) 253 /* force to stay zero in mkfs */ 254 metaspace = -1; 255 break; 256 case 'm': 257 if ((minfree = atoi(optarg)) < 0 || minfree > 99) 258 errx(1, "%s: bad free space %%", optarg); 259 break; 260 case 'n': 261 nflag = 1; 262 break; 263 case 'o': 264 if (strcmp(optarg, "space") == 0) 265 opt = FS_OPTSPACE; 266 else if (strcmp(optarg, "time") == 0) 267 opt = FS_OPTTIME; 268 else 269 errx(1, 270 "%s: unknown optimization preference: use `space' or `time'", 271 optarg); 272 break; 273 case 'r': 274 errno = 0; 275 reserved = strtoimax(optarg, &cp, 0); 276 if (errno != 0 || cp == optarg || 277 *cp != '\0' || reserved < 0) 278 errx(1, "%s: bad reserved size", optarg); 279 break; 280 case 'p': 281 is_file = 1; 282 part_name = optarg[0]; 283 break; 284 285 case 's': 286 errno = 0; 287 fssize = strtoimax(optarg, &cp, 0); 288 if (errno != 0 || cp == optarg || 289 *cp != '\0' || fssize < 0) 290 errx(1, "%s: bad file system size", optarg); 291 break; 292 case 't': 293 tflag = 1; 294 break; 295 case '?': 296 default: 297 usage(); 298 } 299 argc -= optind; 300 argv += optind; 301 302 if (argc != 1) 303 usage(); 304 305 special = argv[0]; 306 if (!special[0]) 307 err(1, "empty file/special name"); 308 cp = strrchr(special, '/'); 309 if (cp == NULL) { 310 /* 311 * No path prefix; try prefixing _PATH_DEV. 312 */ 313 snprintf(device, sizeof(device), "%s%s", _PATH_DEV, special); 314 special = device; 315 } 316 317 if (is_file) { 318 /* bypass ufs_disk_fillout_blank */ 319 bzero( &disk, sizeof(disk)); 320 disk.d_bsize = 1; 321 disk.d_name = special; 322 disk.d_fd = open(special, O_RDONLY); 323 if (disk.d_fd < 0 || 324 (!Nflag && ufs_disk_write(&disk) == -1)) 325 errx(1, "%s: ", special); 326 } else if (ufs_disk_fillout_blank(&disk, special) == -1 || 327 (!Nflag && ufs_disk_write(&disk) == -1)) { 328 if (disk.d_error != NULL) 329 errx(1, "%s: %s", special, disk.d_error); 330 else 331 err(1, "%s", special); 332 } 333 if (fstat(disk.d_fd, &st) < 0) 334 err(1, "%s", special); 335 if ((st.st_mode & S_IFMT) != S_IFCHR) { 336 warn("%s: not a character-special device", special); 337 is_file = 1; /* assume it is a file */ 338 dkname = special; 339 if (sectorsize == 0) 340 sectorsize = 512; 341 mediasize = st.st_size; 342 /* set fssize from the partition */ 343 } else { 344 if (sectorsize == 0) 345 if (ioctl(disk.d_fd, DIOCGSECTORSIZE, §orsize) == -1) 346 sectorsize = 0; /* back out on error for safety */ 347 if (sectorsize && ioctl(disk.d_fd, DIOCGMEDIASIZE, &mediasize) != -1) 348 getfssize(&fssize, special, mediasize / sectorsize, reserved); 349 } 350 pp = NULL; 351 lp = getdisklabel(special); 352 if (lp != NULL) { 353 if (!is_file) /* already set for files */ 354 part_name = special[strlen(special) - 1]; 355 if ((part_name < 'a' || part_name - 'a' >= MAXPARTITIONS) && 356 !isdigit(part_name)) 357 errx(1, "%s: can't figure out file system partition", 358 special); 359 cp = &part_name; 360 if (isdigit(*cp)) 361 pp = &lp->d_partitions[RAW_PART]; 362 else 363 pp = &lp->d_partitions[*cp - 'a']; 364 if (pp->p_size == 0) 365 errx(1, "%s: `%c' partition is unavailable", 366 special, *cp); 367 if (pp->p_fstype == FS_BOOT) 368 errx(1, "%s: `%c' partition overlaps boot program", 369 special, *cp); 370 getfssize(&fssize, special, pp->p_size, reserved); 371 if (sectorsize == 0) 372 sectorsize = lp->d_secsize; 373 if (fsize == 0) 374 fsize = pp->p_fsize; 375 if (bsize == 0) 376 bsize = pp->p_frag * pp->p_fsize; 377 if (is_file) 378 part_ofs = pp->p_offset; 379 } 380 if (sectorsize <= 0) 381 errx(1, "%s: no default sector size", special); 382 if (fsize <= 0) 383 fsize = MAX(DFL_FRAGSIZE, sectorsize); 384 if (bsize <= 0) 385 bsize = MIN(DFL_BLKSIZE, 8 * fsize); 386 if (minfree < MINFREE && opt != FS_OPTSPACE) { 387 fprintf(stderr, "Warning: changing optimization to space "); 388 fprintf(stderr, "because minfree is less than %d%%\n", MINFREE); 389 opt = FS_OPTSPACE; 390 } 391 realsectorsize = sectorsize; 392 if (sectorsize != DEV_BSIZE) { /* XXX */ 393 int secperblk = sectorsize / DEV_BSIZE; 394 395 sectorsize = DEV_BSIZE; 396 fssize *= secperblk; 397 if (pp != NULL) 398 pp->p_size *= secperblk; 399 } 400 mkfs(pp, special); 401 ufs_disk_close(&disk); 402 if (!jflag) 403 exit(0); 404 if (execlp("tunefs", "newfs", "-j", "enable", special, NULL) < 0) 405 err(1, "Cannot enable soft updates journaling, tunefs"); 406 /* NOT REACHED */ 407 } 408 409 void 410 getfssize(intmax_t *fsz, const char *s, intmax_t disksize, intmax_t reserved) 411 { 412 intmax_t available; 413 414 available = disksize - reserved; 415 if (available <= 0) 416 errx(1, "%s: reserved not less than device size %jd", 417 s, disksize); 418 if (*fsz == 0) 419 *fsz = available; 420 else if (*fsz > available) 421 errx(1, "%s: maximum file system size is %jd", 422 s, available); 423 } 424 425 struct disklabel * 426 getdisklabel(char *s) 427 { 428 static struct disklabel lab; 429 struct disklabel *lp; 430 431 if (is_file) { 432 if (read(disk.d_fd, bootarea, BBSIZE) != BBSIZE) 433 err(4, "cannot read bootarea"); 434 if (bsd_disklabel_le_dec( 435 bootarea + (0 /* labeloffset */ + 436 1 /* labelsoffset */ * sectorsize), 437 &lab, MAXPARTITIONS)) 438 errx(1, "no valid label found"); 439 440 lp = &lab; 441 return &lab; 442 } 443 444 if (disktype) { 445 lp = getdiskbyname(disktype); 446 if (lp != NULL) 447 return (lp); 448 } 449 return (NULL); 450 } 451 452 static void 453 usage() 454 { 455 fprintf(stderr, 456 "usage: %s [ -fsoptions ] special-device%s\n", 457 getprogname(), 458 " [device-type]"); 459 fprintf(stderr, "where fsoptions are:\n"); 460 fprintf(stderr, "\t-E Erase previous disk content\n"); 461 fprintf(stderr, "\t-J Enable journaling via gjournal\n"); 462 fprintf(stderr, "\t-L volume label to add to superblock\n"); 463 fprintf(stderr, 464 "\t-N do not create file system, just print out parameters\n"); 465 fprintf(stderr, "\t-O file system format: 1 => UFS1, 2 => UFS2\n"); 466 fprintf(stderr, "\t-R regression test, suppress random factors\n"); 467 fprintf(stderr, "\t-S sector size\n"); 468 fprintf(stderr, "\t-T disktype\n"); 469 fprintf(stderr, "\t-U enable soft updates\n"); 470 fprintf(stderr, "\t-a maximum contiguous blocks\n"); 471 fprintf(stderr, "\t-b block size\n"); 472 fprintf(stderr, "\t-c blocks per cylinders group\n"); 473 fprintf(stderr, "\t-d maximum extent size\n"); 474 fprintf(stderr, "\t-e maximum blocks per file in a cylinder group\n"); 475 fprintf(stderr, "\t-f frag size\n"); 476 fprintf(stderr, "\t-g average file size\n"); 477 fprintf(stderr, "\t-h average files per directory\n"); 478 fprintf(stderr, "\t-i number of bytes per inode\n"); 479 fprintf(stderr, "\t-j enable soft updates journaling\n"); 480 fprintf(stderr, "\t-k space to hold for metadata blocks\n"); 481 fprintf(stderr, "\t-l enable multilabel MAC\n"); 482 fprintf(stderr, "\t-n do not create .snap directory\n"); 483 fprintf(stderr, "\t-m minimum free space %%\n"); 484 fprintf(stderr, "\t-o optimization preference (`space' or `time')\n"); 485 fprintf(stderr, "\t-p partition name (a..h)\n"); 486 fprintf(stderr, "\t-r reserved sectors at the end of device\n"); 487 fprintf(stderr, "\t-s file system size (sectors)\n"); 488 fprintf(stderr, "\t-t enable TRIM\n"); 489 exit(1); 490 } 491 492 static int 493 expand_number_int(const char *buf, int *num) 494 { 495 int64_t num64; 496 int rval; 497 498 rval = expand_number(buf, &num64); 499 if (rval < 0) 500 return (rval); 501 if (num64 > INT_MAX || num64 < INT_MIN) { 502 errno = ERANGE; 503 return (-1); 504 } 505 *num = (int)num64; 506 return (0); 507 } 508