newfs.c revision 1.3.4.2
1 /* $NetBSD: newfs.c,v 1.3.4.2 2000/10/16 22:28:37 tv Exp $ */ 2 3 /*- 4 * Copyright (c) 1989, 1992, 1993 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 __COPYRIGHT("@(#) Copyright (c) 1989, 1992, 1993\n\ 39 The Regents of the University of California. All rights reserved.\n"); 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)newfs.c 8.5 (Berkeley) 5/24/95"; 45 #else 46 __RCSID("$NetBSD: newfs.c,v 1.3.4.2 2000/10/16 22:28:37 tv Exp $"); 47 #endif 48 #endif /* not lint */ 49 50 /* 51 * newfs: friendly front end to mkfs 52 */ 53 #include <sys/param.h> 54 #include <sys/ucred.h> 55 #include <sys/stat.h> 56 #include <sys/ioctl.h> 57 #include <sys/disklabel.h> 58 #include <sys/file.h> 59 #include <sys/mount.h> 60 #include <sys/sysctl.h> 61 62 #include <ufs/ufs/dir.h> 63 #include <ufs/ufs/dinode.h> 64 65 #include <disktab.h> 66 #include <errno.h> 67 #include <unistd.h> 68 #include <stdio.h> 69 #include <stdlib.h> 70 #include <ctype.h> 71 #include <string.h> 72 #include <paths.h> 73 #include <util.h> 74 #include "config.h" 75 #include "extern.h" 76 77 #define COMPAT /* allow non-labeled disks */ 78 79 int Nflag; /* run without writing file system */ 80 int fssize; /* file system size */ 81 int sectorsize; /* bytes/sector */ 82 int fsize = 0; /* fragment size */ 83 int bsize = 0; /* block size */ 84 int minfree = MINFREE; /* free space threshold */ 85 int minfreeseg = 0; /* free segments reserved for the cleaner */ 86 int bbsize = BBSIZE; /* boot block size */ 87 int sbsize = SBSIZE; /* superblock size */ 88 u_long memleft; /* virtual memory available */ 89 caddr_t membase; /* start address of memory based filesystem */ 90 #ifdef COMPAT 91 char *disktype; 92 int unlabeled; 93 #endif 94 95 char device[MAXPATHLEN]; 96 char *progname, *special; 97 98 int main __P((int, char **)); 99 static struct disklabel *getdisklabel __P((char *, int)); 100 static struct disklabel *debug_readlabel __P((int)); 101 #ifdef notdef 102 static void rewritelabel __P((char *, int, struct disklabel *)); 103 #endif 104 static void usage __P((void)); 105 106 int 107 main(argc, argv) 108 int argc; 109 char *argv[]; 110 { 111 int ch; 112 struct partition *pp; 113 struct disklabel *lp; 114 struct stat st; 115 int debug, force, lfs, fsi, fso, segsize, maxpartitions; 116 char *cp, *opstring; 117 118 if ((progname = strrchr(*argv, '/')) != NULL) 119 ++progname; 120 else 121 progname = *argv; 122 123 maxpartitions = getmaxpartitions(); 124 if (maxpartitions > 26) 125 fatal("insane maxpartitions value %d", maxpartitions); 126 127 opstring = "B:DFLNb:f:M:m:s:"; 128 129 debug = force = lfs = segsize = 0; 130 while ((ch = getopt(argc, argv, opstring)) != -1) 131 switch(ch) { 132 case 'B': /* LFS segment size */ 133 if ((segsize = atoi(optarg)) < LFS_MINSEGSIZE) 134 fatal("%s: bad segment size", optarg); 135 break; 136 case 'D': 137 debug = 1; 138 break; 139 case 'F': 140 force = 1; 141 break; 142 case 'L': /* Create lfs */ 143 lfs = 1; 144 break; 145 case 'M': 146 minfreeseg = atoi(optarg); 147 break; 148 case 'N': 149 Nflag++; 150 break; 151 #ifdef COMPAT 152 case 'T': 153 disktype = optarg; 154 break; 155 #endif 156 case 'b': /* used for LFS */ 157 if ((bsize = atoi(optarg)) < LFS_MINBLOCKSIZE) 158 fatal("%s: bad block size", optarg); 159 break; 160 case 'f': 161 if ((fsize = atoi(optarg)) <= 0) 162 fatal("%s: bad frag size", optarg); 163 break; 164 case 'm': 165 if ((minfree = atoi(optarg)) < 0 || minfree > 99) 166 fatal("%s: bad free space %%\n", optarg); 167 break; 168 case 's': 169 if ((fssize = atoi(optarg)) <= 0) 170 fatal("%s: bad file system size", optarg); 171 break; 172 case '?': 173 default: 174 usage(); 175 } 176 argc -= optind; 177 argv += optind; 178 179 if (argc != 2 && argc != 1) 180 usage(); 181 182 /* 183 * If the -N flag isn't specified, open the output file. If no path 184 * prefix, try /dev/r%s and then /dev/%s. 185 */ 186 special = argv[0]; 187 if (strchr(special, '/') == NULL) { 188 (void)snprintf(device, sizeof(device), "%sr%s", _PATH_DEV, 189 special); 190 if (stat(device, &st) == -1) 191 (void)snprintf(device, sizeof(device), "%s%s", 192 _PATH_DEV, special); 193 special = device; 194 } 195 if (!Nflag) { 196 fso = open(special, 197 (debug ? O_CREAT : 0) | O_WRONLY, DEFFILEMODE); 198 if (fso < 0) 199 fatal("%s: %s", special, strerror(errno)); 200 } else 201 fso = -1; 202 203 /* Open the input file. */ 204 fsi = open(special, O_RDONLY); 205 if (fsi < 0) 206 fatal("%s: %s", special, strerror(errno)); 207 if (fstat(fsi, &st) < 0) 208 fatal("%s: %s", special, strerror(errno)); 209 210 if (!debug && !S_ISCHR(st.st_mode)) 211 (void)printf("%s: %s: not a character-special device\n", 212 progname, special); 213 cp = strchr(argv[0], '\0') - 1; 214 if (!debug 215 && (cp == 0 || ((*cp < 'a' || *cp > ('a' + maxpartitions - 1)) 216 && !isdigit(*cp)))) 217 fatal("%s: can't figure out file system partition", argv[0]); 218 219 #ifdef COMPAT 220 if (disktype == NULL) 221 disktype = argv[1]; 222 #endif 223 if (debug) 224 lp = debug_readlabel(fsi); 225 else 226 lp = getdisklabel(special, fsi); 227 228 if (isdigit(*cp)) 229 pp = &lp->d_partitions[0]; 230 else 231 pp = &lp->d_partitions[*cp - 'a']; 232 if (pp->p_size == 0) 233 fatal("%s: `%c' partition is unavailable", argv[0], *cp); 234 235 /* If force, make the partition look like an LFS */ 236 if(force) { 237 pp->p_fstype = FS_BSDLFS; 238 /* 0 means to use defaults */ 239 pp->p_fsize = 0; 240 pp->p_frag = 0; 241 pp->p_sgs = 0; 242 } 243 244 /* If we're making a LFS, we break out here */ 245 exit(make_lfs(fso, lp, pp, minfree, bsize, fsize, segsize, 246 minfreeseg)); 247 } 248 249 #ifdef COMPAT 250 char lmsg[] = "%s: can't read disk label; disk type must be specified"; 251 #else 252 char lmsg[] = "%s: can't read disk label"; 253 #endif 254 255 static struct disklabel * 256 getdisklabel(s, fd) 257 char *s; 258 int fd; 259 { 260 static struct disklabel lab; 261 262 if (ioctl(fd, DIOCGDINFO, (char *)&lab) < 0) { 263 #ifdef COMPAT 264 if (disktype) { 265 struct disklabel *lp; 266 267 unlabeled++; 268 lp = getdiskbyname(disktype); 269 if (lp == NULL) 270 fatal("%s: unknown disk type", disktype); 271 return (lp); 272 } 273 #endif 274 (void)fprintf(stderr, 275 "%s: ioctl (GDINFO): %s\n", progname, strerror(errno)); 276 fatal(lmsg, s); 277 } 278 return (&lab); 279 } 280 281 282 static struct disklabel * 283 debug_readlabel(fd) 284 int fd; 285 { 286 static struct disklabel lab; 287 int n; 288 289 if ((n = read(fd, &lab, sizeof(struct disklabel))) < 0) 290 fatal("unable to read disk label: %s", strerror(errno)); 291 else if (n < sizeof(struct disklabel)) 292 fatal("short read of disklabel: %d of %ld bytes", n, 293 (u_long) sizeof(struct disklabel)); 294 return(&lab); 295 } 296 297 #ifdef notdef 298 static void 299 rewritelabel(s, fd, lp) 300 char *s; 301 int fd; 302 struct disklabel *lp; 303 { 304 #ifdef COMPAT 305 if (unlabeled) 306 return; 307 #endif 308 lp->d_checksum = 0; 309 lp->d_checksum = dkcksum(lp); 310 if (ioctl(fd, DIOCWDINFO, (char *)lp) < 0) { 311 (void)fprintf(stderr, 312 "%s: ioctl (WDINFO): %s\n", progname, strerror(errno)); 313 fatal("%s: can't rewrite disk label", s); 314 } 315 #if __vax__ 316 if (lp->d_type == DTYPE_SMD && lp->d_flags & D_BADSECT) { 317 int i; 318 int cfd; 319 daddr_t alt; 320 char specname[64]; 321 char blk[1024]; 322 char *cp; 323 324 /* 325 * Make name for 'c' partition. 326 */ 327 strcpy(specname, s); 328 cp = specname + strlen(specname) - 1; 329 if (!isdigit(*cp)) 330 *cp = 'c'; 331 cfd = open(specname, O_WRONLY); 332 if (cfd < 0) 333 fatal("%s: %s", specname, strerror(errno)); 334 memset(blk, 0, sizeof(blk)); 335 *(struct disklabel *)(blk + LABELOFFSET) = *lp; 336 alt = lp->d_ncylinders * lp->d_secpercyl - lp->d_nsectors; 337 for (i = 1; i < 11 && i < lp->d_nsectors; i += 2) { 338 if (lseek(cfd, (off_t)((alt + i) * lp->d_secsize), 339 SEEK_SET) == -1) 340 fatal("lseek to badsector area: %s", 341 strerror(errno)); 342 if (write(cfd, blk, lp->d_secsize) < lp->d_secsize) 343 fprintf(stderr, 344 "%s: alternate label %d write: %s\n", 345 progname, i/2, strerror(errno)); 346 } 347 close(cfd); 348 } 349 #endif /* vax */ 350 } 351 #endif /* notdef */ 352 353 void 354 usage() 355 { 356 fprintf(stderr, "usage: newfs_lfs [ -fsoptions ] special-device\n"); 357 fprintf(stderr, "where fsoptions are:\n"); 358 fprintf(stderr, "\t-B LFS segment size\n"); 359 fprintf(stderr, "\t-D debug\n"); 360 /* fprintf(stderr, "\t-L create LFS file system\n"); */ 361 fprintf(stderr, 362 "\t-N do not create file system, just print out parameters\n"); 363 fprintf(stderr, "\t-b block size\n"); 364 fprintf(stderr, "\t-f frag size\n"); 365 fprintf(stderr, "\t-m minimum free space %%\n"); 366 fprintf(stderr, "\t-s file system size (sectors)\n"); 367 exit(1); 368 } 369
Indexes created Tue Oct 21 08:09:48 GMT 2025