| 1 | /*- |
| 2 | * Copyright (c) 1989, 1992 The Regents of the University of California. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * %sccs.include.redist.c% |
| 6 | */ |
| 7 | |
| 8 | #ifndef lint |
| 9 | char copyright[] = |
| 10 | "@(#) Copyright (c) 1989, 1992 The Regents of the University of California.\n\ |
| 11 | All rights reserved.\n"; |
| 12 | #endif /* not lint */ |
| 13 | |
| 14 | #ifndef lint |
| 15 | static char sccsid[] = "@(#)newfs.c 5.6 (Berkeley) %G%"; |
| 16 | #endif /* not lint */ |
| 17 | |
| 18 | /* |
| 19 | * newfs: friendly front end to mkfs |
| 20 | */ |
| 21 | #include <sys/param.h> |
| 22 | #include <sys/ucred.h> |
| 23 | #include <sys/stat.h> |
| 24 | #include <sys/ioctl.h> |
| 25 | #include <sys/disklabel.h> |
| 26 | #include <sys/file.h> |
| 27 | #include <sys/mount.h> |
| 28 | |
| 29 | #include <ufs/ufs/dir.h> |
| 30 | #include <ufs/ufs/dinode.h> |
| 31 | #include <ufs/ffs/fs.h> |
| 32 | |
| 33 | #include <errno.h> |
| 34 | #include <unistd.h> |
| 35 | #include <stdio.h> |
| 36 | #include <stdlib.h> |
| 37 | #include <ctype.h> |
| 38 | #include <string.h> |
| 39 | #include <paths.h> |
| 40 | #include "config.h" |
| 41 | #include "extern.h" |
| 42 | |
| 43 | #define COMPAT /* allow non-labeled disks */ |
| 44 | |
| 45 | int mfs; /* run as the memory based filesystem */ |
| 46 | int Nflag; /* run without writing file system */ |
| 47 | int fssize; /* file system size */ |
| 48 | int ntracks; /* # tracks/cylinder */ |
| 49 | int nsectors; /* # sectors/track */ |
| 50 | int nphyssectors; /* # sectors/track including spares */ |
| 51 | int secpercyl; /* sectors per cylinder */ |
| 52 | int trackspares = -1; /* spare sectors per track */ |
| 53 | int cylspares = -1; /* spare sectors per cylinder */ |
| 54 | int sectorsize; /* bytes/sector */ |
| 55 | #ifdef tahoe |
| 56 | int realsectorsize; /* bytes/sector in hardware */ |
| 57 | #endif |
| 58 | int rpm; /* revolutions/minute of drive */ |
| 59 | int interleave; /* hardware sector interleave */ |
| 60 | int trackskew = -1; /* sector 0 skew, per track */ |
| 61 | int headswitch; /* head switch time, usec */ |
| 62 | int trackseek; /* track-to-track seek, usec */ |
| 63 | int fsize = 0; /* fragment size */ |
| 64 | int bsize = 0; /* block size */ |
| 65 | int cpg = DESCPG; /* cylinders/cylinder group */ |
| 66 | int cpgflg; /* cylinders/cylinder group flag was given */ |
| 67 | int minfree = MINFREE; /* free space threshold */ |
| 68 | int opt = DEFAULTOPT; /* optimization preference (space or time) */ |
| 69 | int density; /* number of bytes per inode */ |
| 70 | int maxcontig = MAXCONTIG; /* max contiguous blocks to allocate */ |
| 71 | int rotdelay = ROTDELAY; /* rotational delay between blocks */ |
| 72 | int maxbpg; /* maximum blocks per file in a cyl group */ |
| 73 | int nrpos = NRPOS; /* # of distinguished rotational positions */ |
| 74 | int bbsize = BBSIZE; /* boot block size */ |
| 75 | int sbsize = SBSIZE; /* superblock size */ |
| 76 | int mntflags; /* flags to be passed to mount */ |
| 77 | u_long memleft; /* virtual memory available */ |
| 78 | caddr_t membase; /* start address of memory based filesystem */ |
| 79 | #ifdef COMPAT |
| 80 | char *disktype; |
| 81 | int unlabeled; |
| 82 | #endif |
| 83 | |
| 84 | char device[MAXPATHLEN]; |
| 85 | char *progname, *special; |
| 86 | |
| 87 | static struct disklabel *getdisklabel __P((char *, int)); |
| 88 | static struct disklabel *debug_readlabel __P((int)); |
| 89 | static void rewritelabel __P((char *, int, struct disklabel *)); |
| 90 | static void usage __P((void)); |
| 91 | |
| 92 | int |
| 93 | main(argc, argv) |
| 94 | int argc; |
| 95 | char *argv[]; |
| 96 | { |
| 97 | register int ch; |
| 98 | register struct partition *pp; |
| 99 | register struct disklabel *lp; |
| 100 | struct partition oldpartition; |
| 101 | struct stat st; |
| 102 | int debug, lfs, fsi, fso, segsize; |
| 103 | char *cp, *opstring; |
| 104 | |
| 105 | if (progname = rindex(*argv, '/')) |
| 106 | ++progname; |
| 107 | else |
| 108 | progname = *argv; |
| 109 | |
| 110 | if (strstr(progname, "mfs")) { |
| 111 | mfs = 1; |
| 112 | Nflag++; |
| 113 | } |
| 114 | |
| 115 | /* -F is mfs only and MUST come first! */ |
| 116 | opstring = "F:B:DLNS:T:a:b:c:d:e:f:i:k:l:m:n:o:p:r:s:t:u:x:"; |
| 117 | if (!mfs) |
| 118 | opstring += 2; |
| 119 | |
| 120 | debug = lfs = segsize = 0; |
| 121 | while ((ch = getopt(argc, argv, opstring)) != EOF) |
| 122 | switch(ch) { |
| 123 | case 'B': /* LFS segment size */ |
| 124 | if ((segsize = atoi(optarg)) < LFS_MINSEGSIZE) |
| 125 | fatal("%s: bad segment size", optarg); |
| 126 | break; |
| 127 | case 'D': |
| 128 | debug = 1; |
| 129 | break; |
| 130 | case 'F': |
| 131 | if ((mntflags = atoi(optarg)) == 0) |
| 132 | fatal("%s: bad mount flags", optarg); |
| 133 | break; |
| 134 | case 'L': /* Create lfs */ |
| 135 | lfs = 1; |
| 136 | break; |
| 137 | case 'N': |
| 138 | Nflag++; |
| 139 | break; |
| 140 | case 'S': |
| 141 | if ((sectorsize = atoi(optarg)) <= 0) |
| 142 | fatal("%s: bad sector size", optarg); |
| 143 | break; |
| 144 | #ifdef COMPAT |
| 145 | case 'T': |
| 146 | disktype = optarg; |
| 147 | break; |
| 148 | #endif |
| 149 | case 'a': |
| 150 | if ((maxcontig = atoi(optarg)) <= 0) |
| 151 | fatal("%s: bad max contiguous blocks\n", |
| 152 | optarg); |
| 153 | break; |
| 154 | case 'b': /* used for LFS */ |
| 155 | if ((bsize = atoi(optarg)) < MINBSIZE) |
| 156 | fatal("%s: bad block size", optarg); |
| 157 | break; |
| 158 | case 'c': |
| 159 | if ((cpg = atoi(optarg)) <= 0) |
| 160 | fatal("%s: bad cylinders/group", optarg); |
| 161 | cpgflg++; |
| 162 | break; |
| 163 | case 'd': |
| 164 | if ((rotdelay = atoi(optarg)) < 0) |
| 165 | fatal("%s: bad rotational delay\n", optarg); |
| 166 | break; |
| 167 | case 'e': |
| 168 | if ((maxbpg = atoi(optarg)) <= 0) |
| 169 | fatal("%s: bad blocks per file in a cyl group\n", |
| 170 | optarg); |
| 171 | break; |
| 172 | case 'f': |
| 173 | if ((fsize = atoi(optarg)) <= 0) |
| 174 | fatal("%s: bad frag size", optarg); |
| 175 | break; |
| 176 | case 'i': |
| 177 | if ((density = atoi(optarg)) <= 0) |
| 178 | fatal("%s: bad bytes per inode\n", optarg); |
| 179 | break; |
| 180 | case 'k': |
| 181 | if ((trackskew = atoi(optarg)) < 0) |
| 182 | fatal("%s: bad track skew", optarg); |
| 183 | break; |
| 184 | case 'l': |
| 185 | if ((interleave = atoi(optarg)) <= 0) |
| 186 | fatal("%s: bad interleave", optarg); |
| 187 | break; |
| 188 | case 'm': /* used for LFS */ |
| 189 | if ((minfree = atoi(optarg)) < 0 || minfree > 99) |
| 190 | fatal("%s: bad free space %%\n", optarg); |
| 191 | break; |
| 192 | case 'n': |
| 193 | if ((nrpos = atoi(optarg)) <= 0) |
| 194 | fatal("%s: bad rotational layout count\n", |
| 195 | optarg); |
| 196 | break; |
| 197 | case 'o': |
| 198 | if (strcmp(optarg, "space") == 0) |
| 199 | opt = FS_OPTSPACE; |
| 200 | else if (strcmp(optarg, "time") == 0) |
| 201 | opt = FS_OPTTIME; |
| 202 | else |
| 203 | fatal("%s: bad optimization preference %s", |
| 204 | optarg, "(options are `space' or `time')"); |
| 205 | break; |
| 206 | case 'p': |
| 207 | if ((trackspares = atoi(optarg)) < 0) |
| 208 | fatal("%s: bad spare sectors per track", |
| 209 | optarg); |
| 210 | break; |
| 211 | case 'r': |
| 212 | if ((rpm = atoi(optarg)) <= 0) |
| 213 | fatal("%s: bad revs/minute\n", optarg); |
| 214 | break; |
| 215 | case 's': /* used for LFS */ |
| 216 | if ((fssize = atoi(optarg)) <= 0) |
| 217 | fatal("%s: bad file system size", optarg); |
| 218 | break; |
| 219 | case 't': |
| 220 | if ((ntracks = atoi(optarg)) <= 0) |
| 221 | fatal("%s: bad total tracks", optarg); |
| 222 | break; |
| 223 | case 'u': |
| 224 | if ((nsectors = atoi(optarg)) <= 0) |
| 225 | fatal("%s: bad sectors/track", optarg); |
| 226 | break; |
| 227 | case 'x': |
| 228 | if ((cylspares = atoi(optarg)) < 0) |
| 229 | fatal("%s: bad spare sectors per cylinder", |
| 230 | optarg); |
| 231 | break; |
| 232 | case '?': |
| 233 | default: |
| 234 | usage(); |
| 235 | } |
| 236 | argc -= optind; |
| 237 | argv += optind; |
| 238 | |
| 239 | if (argc != 2 && (mfs || argc != 1)) |
| 240 | usage(); |
| 241 | |
| 242 | /* |
| 243 | * If the -N flag isn't specified, open the output file. If no path |
| 244 | * prefix, try /dev/r%s and then /dev/%s. |
| 245 | */ |
| 246 | special = argv[0]; |
| 247 | if (index(special, '/') == NULL) { |
| 248 | (void)sprintf(device, "%sr%s", _PATH_DEV, special); |
| 249 | if (stat(device, &st) == -1) |
| 250 | (void)sprintf(device, "%s%s", _PATH_DEV, special); |
| 251 | special = device; |
| 252 | } |
| 253 | if (!Nflag) { |
| 254 | fso = open(special, |
| 255 | (debug ? O_CREAT : 0) | O_WRONLY, DEFFILEMODE); |
| 256 | if (fso < 0) |
| 257 | fatal("%s: %s", special, strerror(errno)); |
| 258 | } else |
| 259 | fso = -1; |
| 260 | |
| 261 | /* Open the input file. */ |
| 262 | fsi = open(special, O_RDONLY); |
| 263 | if (fsi < 0) |
| 264 | fatal("%s: %s", special, strerror(errno)); |
| 265 | if (fstat(fsi, &st) < 0) |
| 266 | fatal("%s: %s", special, strerror(errno)); |
| 267 | |
| 268 | if (!debug && !mfs && !S_ISCHR(st.st_mode)) |
| 269 | (void)printf("%s: %s: not a character-special device\n", |
| 270 | progname, special); |
| 271 | cp = index(argv[0], '\0') - 1; |
| 272 | if (!debug && (cp == 0 || (*cp < 'a' || *cp > 'h') && !isdigit(*cp))) |
| 273 | fatal("%s: can't figure out file system partition", argv[0]); |
| 274 | |
| 275 | #ifdef COMPAT |
| 276 | if (!mfs && disktype == NULL) |
| 277 | disktype = argv[1]; |
| 278 | #endif |
| 279 | if (debug) |
| 280 | lp = debug_readlabel(fsi); |
| 281 | else |
| 282 | lp = getdisklabel(special, fsi); |
| 283 | |
| 284 | if (isdigit(*cp)) |
| 285 | pp = &lp->d_partitions[0]; |
| 286 | else |
| 287 | pp = &lp->d_partitions[*cp - 'a']; |
| 288 | if (pp->p_size == 0) |
| 289 | fatal("%s: `%c' partition is unavailable", argv[0], *cp); |
| 290 | |
| 291 | /* If we're making a LFS, we break out here */ |
| 292 | exit(make_lfs(fso, lp, pp, minfree, bsize, segsize)); |
| 293 | } |
| 294 | |
| 295 | #ifdef COMPAT |
| 296 | char lmsg[] = "%s: can't read disk label; disk type must be specified"; |
| 297 | #else |
| 298 | char lmsg[] = "%s: can't read disk label"; |
| 299 | #endif |
| 300 | |
| 301 | static struct disklabel * |
| 302 | getdisklabel(s, fd) |
| 303 | char *s; |
| 304 | int fd; |
| 305 | { |
| 306 | static struct disklabel lab; |
| 307 | |
| 308 | if (ioctl(fd, DIOCGDINFO, (char *)&lab) < 0) { |
| 309 | #ifdef COMPAT |
| 310 | if (disktype) { |
| 311 | struct disklabel *lp, *getdiskbyname(); |
| 312 | |
| 313 | unlabeled++; |
| 314 | lp = getdiskbyname(disktype); |
| 315 | if (lp == NULL) |
| 316 | fatal("%s: unknown disk type", disktype); |
| 317 | return (lp); |
| 318 | } |
| 319 | #endif |
| 320 | (void)fprintf(stderr, |
| 321 | "%s: ioctl (GDINFO): %s\n", progname, strerror(errno)); |
| 322 | fatal(lmsg, s); |
| 323 | } |
| 324 | return (&lab); |
| 325 | } |
| 326 | |
| 327 | |
| 328 | static struct disklabel * |
| 329 | debug_readlabel(fd) |
| 330 | int fd; |
| 331 | { |
| 332 | static struct disklabel lab; |
| 333 | int n; |
| 334 | |
| 335 | if ((n = read(fd, &lab, sizeof(struct disklabel))) < 0) |
| 336 | fatal("unable to read disk label: %s", strerror(errno)); |
| 337 | else if (n < sizeof(struct disklabel)) |
| 338 | fatal("short read of disklabel: %d of %d bytes", n, |
| 339 | sizeof(struct disklabel)); |
| 340 | return(&lab); |
| 341 | } |
| 342 | |
| 343 | static void |
| 344 | rewritelabel(s, fd, lp) |
| 345 | char *s; |
| 346 | int fd; |
| 347 | register struct disklabel *lp; |
| 348 | { |
| 349 | #ifdef COMPAT |
| 350 | if (unlabeled) |
| 351 | return; |
| 352 | #endif |
| 353 | lp->d_checksum = 0; |
| 354 | lp->d_checksum = dkcksum(lp); |
| 355 | if (ioctl(fd, DIOCWDINFO, (char *)lp) < 0) { |
| 356 | (void)fprintf(stderr, |
| 357 | "%s: ioctl (WDINFO): %s\n", progname, strerror(errno)); |
| 358 | fatal("%s: can't rewrite disk label", s); |
| 359 | } |
| 360 | #if vax |
| 361 | if (lp->d_type == DTYPE_SMD && lp->d_flags & D_BADSECT) { |
| 362 | register i; |
| 363 | int cfd; |
| 364 | daddr_t alt; |
| 365 | char specname[64]; |
| 366 | char blk[1024]; |
| 367 | char *cp; |
| 368 | |
| 369 | /* |
| 370 | * Make name for 'c' partition. |
| 371 | */ |
| 372 | strcpy(specname, s); |
| 373 | cp = specname + strlen(specname) - 1; |
| 374 | if (!isdigit(*cp)) |
| 375 | *cp = 'c'; |
| 376 | cfd = open(specname, O_WRONLY); |
| 377 | if (cfd < 0) |
| 378 | fatal("%s: %s", specname, strerror(errno)); |
| 379 | bzero(blk, sizeof(blk)); |
| 380 | *(struct disklabel *)(blk + LABELOFFSET) = *lp; |
| 381 | alt = lp->d_ncylinders * lp->d_secpercyl - lp->d_nsectors; |
| 382 | for (i = 1; i < 11 && i < lp->d_nsectors; i += 2) { |
| 383 | if (lseek(cfd, (off_t)(alt + i) * lp->d_secsize, |
| 384 | L_SET) == -1) |
| 385 | fatal("lseek to badsector area: %s", |
| 386 | strerror(errno)); |
| 387 | if (write(cfd, blk, lp->d_secsize) < lp->d_secsize) |
| 388 | fprintf(stderr, |
| 389 | "%s: alternate label %d write: %s\n", |
| 390 | progname, i/2, strerror(errno)); |
| 391 | } |
| 392 | close(cfd); |
| 393 | } |
| 394 | #endif |
| 395 | } |
| 396 | |
| 397 | void |
| 398 | usage() |
| 399 | { |
| 400 | if (mfs) { |
| 401 | fprintf(stderr, |
| 402 | "usage: mfs [ -fsoptions ] special-device mount-point\n"); |
| 403 | } else |
| 404 | fprintf(stderr, |
| 405 | "usage: newfs [ -fsoptions ] special-device%s\n", |
| 406 | #ifdef COMPAT |
| 407 | " [device-type]"); |
| 408 | #else |
| 409 | ""); |
| 410 | #endif |
| 411 | fprintf(stderr, "where fsoptions are:\n"); |
| 412 | fprintf(stderr, "\t-B LFS segment size\n"); |
| 413 | fprintf(stderr, "\t-D debug\n"); |
| 414 | fprintf(stderr, "\t-F mount flags\n"); |
| 415 | fprintf(stderr, "\t-L create LFS file system\n"); |
| 416 | fprintf(stderr, |
| 417 | "\t-N do not create file system, just print out parameters\n"); |
| 418 | fprintf(stderr, "\t-S sector size\n"); |
| 419 | #ifdef COMPAT |
| 420 | fprintf(stderr, "\t-T disktype\n"); |
| 421 | #endif |
| 422 | fprintf(stderr, "\t-a maximum contiguous blocks\n"); |
| 423 | fprintf(stderr, "\t-b block size\n"); |
| 424 | fprintf(stderr, "\t-c cylinders/group\n"); |
| 425 | fprintf(stderr, "\t-d rotational delay between contiguous blocks\n"); |
| 426 | fprintf(stderr, "\t-e maximum blocks per file in a cylinder group\n"); |
| 427 | fprintf(stderr, "\t-f frag size\n"); |
| 428 | fprintf(stderr, "\t-i number of bytes per inode\n"); |
| 429 | fprintf(stderr, "\t-k sector 0 skew, per track\n"); |
| 430 | fprintf(stderr, "\t-l hardware sector interleave\n"); |
| 431 | fprintf(stderr, "\t-m minimum free space %%\n"); |
| 432 | fprintf(stderr, "\t-n number of distinguished rotational positions\n"); |
| 433 | fprintf(stderr, "\t-o optimization preference (`space' or `time')\n"); |
| 434 | fprintf(stderr, "\t-p spare sectors per track\n"); |
| 435 | fprintf(stderr, "\t-r revolutions/minute\n"); |
| 436 | fprintf(stderr, "\t-s file system size (sectors)\n"); |
| 437 | fprintf(stderr, "\t-t tracks/cylinder\n"); |
| 438 | fprintf(stderr, "\t-u sectors/track\n"); |
| 439 | fprintf(stderr, "\t-x spare sectors per cylinder\n"); |
| 440 | exit(1); |
| 441 | } |