newfs.c revision 1.2
1 /* $NetBSD: newfs.c,v 1.2 1999/07/15 19:09:40 perseant 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 1.2 1999/07/15 19:09:40 perseant 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 bbsize = BBSIZE; /* boot block size */ 86 int sbsize = SBSIZE; /* superblock size */ 87 u_long memleft; /* virtual memory available */ 88 caddr_t membase; /* start address of memory based filesystem */ 89 #ifdef COMPAT 90 char *disktype; 91 int unlabeled; 92 #endif 93 94 char device[MAXPATHLEN]; 95 char *progname, *special; 96 97 int main __P((int, char **)); 98 static struct disklabel *getdisklabel __P((char *, int)); 99 static struct disklabel *debug_readlabel __P((int)); 100 #ifdef notdef 101 static void rewritelabel __P((char *, int, struct disklabel *)); 102 #endif 103 static void usage __P((void)); 104 105 int 106 main(argc, argv) 107 int argc; 108 char *argv[]; 109 { 110 int ch; 111 struct partition *pp; 112 struct disklabel *lp; 113 struct stat st; 114 int debug, lfs, fsi, fso, segsize, maxpartitions; 115 char *cp, *opstring; 116 117 if ((progname = strrchr(*argv, '/')) != NULL) 118 ++progname; 119 else 120 progname = *argv; 121 122 maxpartitions = getmaxpartitions(); 123 if (maxpartitions > 26) 124 fatal("insane maxpartitions value %d", maxpartitions); 125 126 opstring = "B:DLNb:f:m:s:"; 127 128 debug = lfs = segsize = 0; 129 while ((ch = getopt(argc, argv, opstring)) != -1) 130 switch(ch) { 131 case 'B': /* LFS segment size */ 132 if ((segsize = atoi(optarg)) < LFS_MINSEGSIZE) 133 fatal("%s: bad segment size", optarg); 134 break; 135 case 'D': 136 debug = 1; 137 break; 138 case 'L': /* Create lfs */ 139 lfs = 1; 140 break; 141 case 'N': 142 Nflag++; 143 break; 144 #ifdef COMPAT 145 case 'T': 146 disktype = optarg; 147 break; 148 #endif 149 case 'b': /* used for LFS */ 150 if ((bsize = atoi(optarg)) < LFS_MINBLOCKSIZE) 151 fatal("%s: bad block size", optarg); 152 break; 153 case 'f': 154 if ((fsize = atoi(optarg)) <= 0) 155 fatal("%s: bad frag size", optarg); 156 break; 157 case 'm': 158 if ((minfree = atoi(optarg)) < 0 || minfree > 99) 159 fatal("%s: bad free space %%\n", optarg); 160 break; 161 case 's': 162 if ((fssize = atoi(optarg)) <= 0) 163 fatal("%s: bad file system size", optarg); 164 break; 165 case '?': 166 default: 167 usage(); 168 } 169 argc -= optind; 170 argv += optind; 171 172 if (argc != 2 && argc != 1) 173 usage(); 174 175 /* 176 * If the -N flag isn't specified, open the output file. If no path 177 * prefix, try /dev/r%s and then /dev/%s. 178 */ 179 special = argv[0]; 180 if (strchr(special, '/') == NULL) { 181 (void)snprintf(device, sizeof(device), "%sr%s", _PATH_DEV, 182 special); 183 if (stat(device, &st) == -1) 184 (void)snprintf(device, sizeof(device), "%s%s", 185 _PATH_DEV, special); 186 special = device; 187 } 188 if (!Nflag) { 189 fso = open(special, 190 (debug ? O_CREAT : 0) | O_WRONLY, DEFFILEMODE); 191 if (fso < 0) 192 fatal("%s: %s", special, strerror(errno)); 193 } else 194 fso = -1; 195 196 /* Open the input file. */ 197 fsi = open(special, O_RDONLY); 198 if (fsi < 0) 199 fatal("%s: %s", special, strerror(errno)); 200 if (fstat(fsi, &st) < 0) 201 fatal("%s: %s", special, strerror(errno)); 202 203 if (!debug && !S_ISCHR(st.st_mode)) 204 (void)printf("%s: %s: not a character-special device\n", 205 progname, special); 206 cp = strchr(argv[0], '\0') - 1; 207 if (!debug 208 && (cp == 0 || ((*cp < 'a' || *cp > ('a' + maxpartitions - 1)) 209 && !isdigit(*cp)))) 210 fatal("%s: can't figure out file system partition", argv[0]); 211 212 #ifdef COMPAT 213 if (disktype == NULL) 214 disktype = argv[1]; 215 #endif 216 if (debug) 217 lp = debug_readlabel(fsi); 218 else 219 lp = getdisklabel(special, fsi); 220 221 if (isdigit(*cp)) 222 pp = &lp->d_partitions[0]; 223 else 224 pp = &lp->d_partitions[*cp - 'a']; 225 if (pp->p_size == 0) 226 fatal("%s: `%c' partition is unavailable", argv[0], *cp); 227 228 /* If we're making a LFS, we break out here */ 229 exit(make_lfs(fso, lp, pp, minfree, bsize, fsize, segsize)); 230 } 231 232 #ifdef COMPAT 233 char lmsg[] = "%s: can't read disk label; disk type must be specified"; 234 #else 235 char lmsg[] = "%s: can't read disk label"; 236 #endif 237 238 static struct disklabel * 239 getdisklabel(s, fd) 240 char *s; 241 int fd; 242 { 243 static struct disklabel lab; 244 245 if (ioctl(fd, DIOCGDINFO, (char *)&lab) < 0) { 246 #ifdef COMPAT 247 if (disktype) { 248 struct disklabel *lp; 249 250 unlabeled++; 251 lp = getdiskbyname(disktype); 252 if (lp == NULL) 253 fatal("%s: unknown disk type", disktype); 254 return (lp); 255 } 256 #endif 257 (void)fprintf(stderr, 258 "%s: ioctl (GDINFO): %s\n", progname, strerror(errno)); 259 fatal(lmsg, s); 260 } 261 return (&lab); 262 } 263 264 265 static struct disklabel * 266 debug_readlabel(fd) 267 int fd; 268 { 269 static struct disklabel lab; 270 int n; 271 272 if ((n = read(fd, &lab, sizeof(struct disklabel))) < 0) 273 fatal("unable to read disk label: %s", strerror(errno)); 274 else if (n < sizeof(struct disklabel)) 275 fatal("short read of disklabel: %d of %d bytes", n, 276 sizeof(struct disklabel)); 277 return(&lab); 278 } 279 280 #ifdef notdef 281 static void 282 rewritelabel(s, fd, lp) 283 char *s; 284 int fd; 285 struct disklabel *lp; 286 { 287 #ifdef COMPAT 288 if (unlabeled) 289 return; 290 #endif 291 lp->d_checksum = 0; 292 lp->d_checksum = dkcksum(lp); 293 if (ioctl(fd, DIOCWDINFO, (char *)lp) < 0) { 294 (void)fprintf(stderr, 295 "%s: ioctl (WDINFO): %s\n", progname, strerror(errno)); 296 fatal("%s: can't rewrite disk label", s); 297 } 298 #if __vax__ 299 if (lp->d_type == DTYPE_SMD && lp->d_flags & D_BADSECT) { 300 int i; 301 int cfd; 302 daddr_t alt; 303 char specname[64]; 304 char blk[1024]; 305 char *cp; 306 307 /* 308 * Make name for 'c' partition. 309 */ 310 strcpy(specname, s); 311 cp = specname + strlen(specname) - 1; 312 if (!isdigit(*cp)) 313 *cp = 'c'; 314 cfd = open(specname, O_WRONLY); 315 if (cfd < 0) 316 fatal("%s: %s", specname, strerror(errno)); 317 memset(blk, 0, sizeof(blk)); 318 *(struct disklabel *)(blk + LABELOFFSET) = *lp; 319 alt = lp->d_ncylinders * lp->d_secpercyl - lp->d_nsectors; 320 for (i = 1; i < 11 && i < lp->d_nsectors; i += 2) { 321 if (lseek(cfd, (off_t)((alt + i) * lp->d_secsize), 322 SEEK_SET) == -1) 323 fatal("lseek to badsector area: %s", 324 strerror(errno)); 325 if (write(cfd, blk, lp->d_secsize) < lp->d_secsize) 326 fprintf(stderr, 327 "%s: alternate label %d write: %s\n", 328 progname, i/2, strerror(errno)); 329 } 330 close(cfd); 331 } 332 #endif /* vax */ 333 } 334 #endif /* notdef */ 335 336 void 337 usage() 338 { 339 fprintf(stderr, "usage: newfs_lfs [ -fsoptions ] special-device\n"); 340 fprintf(stderr, "where fsoptions are:\n"); 341 fprintf(stderr, "\t-B LFS segment size\n"); 342 fprintf(stderr, "\t-D debug\n"); 343 /* fprintf(stderr, "\t-L create LFS file system\n"); */ 344 fprintf(stderr, 345 "\t-N do not create file system, just print out parameters\n"); 346 fprintf(stderr, "\t-b block size\n"); 347 fprintf(stderr, "\t-f frag size\n"); 348 fprintf(stderr, "\t-m minimum free space %%\n"); 349 fprintf(stderr, "\t-s file system size (sectors)\n"); 350 exit(1); 351 } 352
Indexes created Tue Oct 21 19:09:51 GMT 2025