/* $OpenBSD: newfs.c,v 1.15 2004/07/17 02:14:33 deraadt Exp $ */ /* $NetBSD: newfs.c,v 1.5 1996/05/16 07:17:50 thorpej Exp $ */ /*- * Copyright (c) 1989, 1992, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef lint static char copyright[] = "@(#) Copyright (c) 1989, 1992, 1993\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #ifndef lint #if 0 static char sccsid[] = "@(#)newfs.c 8.5 (Berkeley) 5/24/95"; #else static char rcsid[] = "$OpenBSD: newfs.c,v 1.15 2004/07/17 02:14:33 deraadt Exp $"; #endif #endif /* not lint */ /* * newfs: friendly front end to mkfs */ #include <sys/param.h> #include <sys/ucred.h> #include <sys/stat.h> #include <sys/ioctl.h> #include <sys/disklabel.h> #include <sys/mount.h> #include <sys/sysctl.h> #include <ufs/ufs/dir.h> #include <ufs/ufs/dinode.h> #include <errno.h> #include <fcntl.h> #include <unistd.h> #include <stdio.h> #include <stdlib.h> #include <ctype.h> #include <string.h> #include <paths.h> #include <util.h> #include "config.h" #include "extern.h" #define COMPAT /* allow non-labeled disks */ int mfs; /* run as the memory based filesystem */ int Nflag; /* run without writing file system */ int fssize; /* file system size */ int ntracks; /* # tracks/cylinder */ int nsectors; /* # sectors/track */ int nphyssectors; /* # sectors/track including spares */ int secpercyl; /* sectors per cylinder */ int trackspares = -1; /* spare sectors per track */ int cylspares = -1; /* spare sectors per cylinder */ int sectorsize; /* bytes/sector */ #ifdef tahoe int realsectorsize; /* bytes/sector in hardware */ #endif int rpm; /* revolutions/minute of drive */ int interleave; /* hardware sector interleave */ int trackskew = -1; /* sector 0 skew, per track */ int headswitch; /* head switch time, usec */ int trackseek; /* track-to-track seek, usec */ int fsize = 0; /* fragment size */ int bsize = 0; /* block size */ int cpg = DESCPG; /* cylinders/cylinder group */ int cpgflg; /* cylinders/cylinder group flag was given */ int minfree = MINFREE; /* free space threshold */ int opt = DEFAULTOPT; /* optimization preference (space or time) */ int density; /* number of bytes per inode */ int maxcontig = MAXCONTIG; /* max contiguous blocks to allocate */ int rotdelay = ROTDELAY; /* rotational delay between blocks */ int maxbpg; /* maximum blocks per file in a cyl group */ int nrpos = NRPOS; /* # of distinguished rotational positions */ int bbsize = BBSIZE; /* boot block size */ int sbsize = SBSIZE; /* superblock size */ int mntflags; /* flags to be passed to mount */ u_long memleft; /* virtual memory available */ caddr_t membase; /* start address of memory based filesystem */ #ifdef COMPAT char *disktype; int unlabeled; #endif char device[MAXPATHLEN]; char *progname, *special; static struct disklabel *getdisklabel(char *, int); static struct disklabel *debug_readlabel(int); static void rewritelabel(char *, int, struct disklabel *); static void usage(void); int main(int argc, char *argv[]) { int ch; struct partition *pp; struct disklabel *lp; struct partition oldpartition; struct stat st; int debug, lfs, fsi, fso, segsize, maxpartitions; char *cp, *opstring; if (progname = strrchr(*argv, '/')) ++progname; else progname = *argv; if (strstr(progname, "mfs")) { mfs = 1; Nflag++; } maxpartitions = getmaxpartitions(); if (maxpartitions > 26) fatal("insane maxpartitions value %d", maxpartitions); /* -F is mfs only and MUST come first! */ opstring = "F:B:DLNS:T:a:b:c:d:e:f:i:k:l:t:m:n:o:p:r:s:z:u:x:"; if (!mfs) opstring += 2; debug = lfs = segsize = 0; while ((ch = getopt(argc, argv, opstring)) != -1) switch(ch) { case 'B': /* LFS segment size */ if ((segsize = atoi(optarg)) < LFS_MINSEGSIZE) fatal("%s: bad segment size", optarg); break; case 'D': debug = 1; break; case 'F': if ((mntflags = atoi(optarg)) == 0) fatal("%s: bad mount flags", optarg); break; case 'L': /* Create lfs */ lfs = 1; break; case 'N': Nflag++; break; case 'S': if ((sectorsize = atoi(optarg)) <= 0) fatal("%s: bad sector size", optarg); break; #ifdef COMPAT case 'T': disktype = optarg; break; #endif case 'a': if ((maxcontig = atoi(optarg)) <= 0) fatal("%s: bad max contiguous blocks\n", optarg); break; case 'b': /* used for LFS */ if ((bsize = atoi(optarg)) < LFS_MINBLOCKSIZE) fatal("%s: bad block size", optarg); break; case 'c': if ((cpg = atoi(optarg)) <= 0) fatal("%s: bad cylinders/group", optarg); cpgflg++; break; case 'd': if ((rotdelay = atoi(optarg)) < 0) fatal("%s: bad rotational delay\n", optarg); break; case 'e': if ((maxbpg = atoi(optarg)) <= 0) fatal("%s: bad blocks per file in a cyl group\n", optarg); break; case 'f': if ((fsize = atoi(optarg)) <= 0) fatal("%s: bad frag size", optarg); break; case 'i': if ((density = atoi(optarg)) <= 0) fatal("%s: bad bytes per inode\n", optarg); break; case 'k': if ((trackskew = atoi(optarg)) < 0) fatal("%s: bad track skew", optarg); break; case 'l': if ((interleave = atoi(optarg)) <= 0) fatal("%s: bad interleave", optarg); break; case 'm': /* used for LFS */ if ((minfree = atoi(optarg)) < 0 || minfree > 99) fatal("%s: bad free space %%\n", optarg); break; case 'n': if ((nrpos = atoi(optarg)) <= 0) fatal("%s: bad rotational layout count\n", optarg); break; case 'o': if (strcmp(optarg, "space") == 0) opt = FS_OPTSPACE; else if (strcmp(optarg, "time") == 0) opt = FS_OPTTIME; else fatal("%s: bad optimization preference %s", optarg, "(options are `space' or `time')"); break; case 'p': if ((trackspares = atoi(optarg)) < 0) fatal("%s: bad spare sectors per track", optarg); break; case 'r': if ((rpm = atoi(optarg)) <= 0) fatal("%s: bad revs/minute\n", optarg); break; case 's': /* used for LFS */ if ((fssize = atoi(optarg)) <= 0) fatal("%s: bad file system size", optarg); break; case 't': /* compat with "-t fstype" in newfs */ break; case 'z': if ((ntracks = atoi(optarg)) <= 0) fatal("%s: bad total tracks", optarg); break; case 'u': if ((nsectors = atoi(optarg)) <= 0) fatal("%s: bad sectors/track", optarg); break; case 'x': if ((cylspares = atoi(optarg)) < 0) fatal("%s: bad spare sectors per cylinder", optarg); break; case '?': default: usage(); } argc -= optind; argv += optind; if (argc != 2 && (mfs || argc != 1)) usage(); /* * If the -N flag isn't specified, open the output file. If no path * prefix, try /dev/r%s and then /dev/%s. */ special = argv[0]; if (strchr(special, '/') == NULL) { (void)snprintf(device, sizeof device, "%sr%s", _PATH_DEV, special); if (stat(device, &st) == -1) (void)snprintf(device, sizeof device, "%s%s", _PATH_DEV, special); special = device; } if (!Nflag) { fso = open(special, (debug ? O_CREAT : 0) | O_WRONLY, DEFFILEMODE); if (fso < 0) fatal("%s: %s", special, strerror(errno)); } else fso = -1; /* Open the input file. */ fsi = open(special, O_RDONLY); if (fsi < 0) fatal("%s: %s", special, strerror(errno)); if (fstat(fsi, &st) < 0) fatal("%s: %s", special, strerror(errno)); if (!debug && !mfs && !S_ISCHR(st.st_mode)) (void)printf("%s: %s: not a character-special device\n", progname, special); cp = strchr(argv[0], '\0') - 1; if (!debug && (cp == 0 || (*cp < 'a' || *cp > ('a' + maxpartitions - 1)) && !isdigit(*cp))) fatal("%s: can't figure out file system partition", argv[0]); #ifdef COMPAT if (!mfs && disktype == NULL) disktype = argv[1]; #endif if (debug) lp = debug_readlabel(fsi); else lp = getdisklabel(special, fsi); if (isdigit(*cp)) pp = &lp->d_partitions[0]; else pp = &lp->d_partitions[*cp - 'a']; if (pp->p_size == 0) fatal("%s: `%c' partition is unavailable", argv[0], *cp); /* If we're making a LFS, we break out here */ exit(make_lfs(fso, lp, pp, minfree, bsize, fsize, segsize)); } #ifdef COMPAT char lmsg[] = "%s: can't read disk label; disk type must be specified"; #else char lmsg[] = "%s: can't read disk label"; #endif static struct disklabel * getdisklabel(char *s, int fd) { static struct disklabel lab; if (ioctl(fd, DIOCGDINFO, (char *)&lab) < 0) { #ifdef COMPAT if (disktype) { struct disklabel *lp; unlabeled++; lp = getdiskbyname(disktype); if (lp == NULL) fatal("%s: unknown disk type", disktype); return (lp); } #endif (void)fprintf(stderr, "%s: ioctl (GDINFO): %s\n", progname, strerror(errno)); fatal(lmsg, s); } return (&lab); } static struct disklabel * debug_readlabel(int fd) { static struct disklabel lab; int n; if ((n = read(fd, &lab, sizeof(struct disklabel))) < 0) fatal("unable to read disk label: %s", strerror(errno)); else if (n < sizeof(struct disklabel)) fatal("short read of disklabel: %d of %d bytes", n, sizeof(struct disklabel)); return(&lab); } static void rewritelabel(char *s, int fd, struct disklabel *lp) { #ifdef COMPAT if (unlabeled) return; #endif lp->d_checksum = 0; lp->d_checksum = dkcksum(lp); if (ioctl(fd, DIOCWDINFO, (char *)lp) < 0) { (void)fprintf(stderr, "%s: ioctl (WDINFO): %s\n", progname, strerror(errno)); fatal("%s: can't rewrite disk label", s); } #if vax if (lp->d_type == DTYPE_SMD && lp->d_flags & D_BADSECT) { int i; int cfd; daddr_t alt; char specname[64]; char blk[1024]; char *cp; /* * Make name for 'c' partition. */ strlcpy(specname, s, sizeof specname); cp = specname + strlen(specname) - 1; if (!isdigit(*cp)) *cp = 'c'; cfd = open(specname, O_WRONLY); if (cfd < 0) fatal("%s: %s", specname, strerror(errno)); memset(blk, 0, sizeof(blk)); *(struct disklabel *)(blk + LABELOFFSET) = *lp; alt = lp->d_ncylinders * lp->d_secpercyl - lp->d_nsectors; for (i = 1; i < 11 && i < lp->d_nsectors; i += 2) { if (lseek(cfd, (off_t)(alt + i) * lp->d_secsize, SEEK_SET) == -1) fatal("lseek to badsector area: %s", strerror(errno)); if (write(cfd, blk, lp->d_secsize) < lp->d_secsize) fprintf(stderr, "%s: alternate label %d write: %s\n", progname, i/2, strerror(errno)); } close(cfd); } #endif } void usage(void) { if (mfs) { fprintf(stderr, "usage: mfs [ -fsoptions ] special-device mount-point\n"); } else fprintf(stderr, "usage: newfs_lfs [ -fsoptions ] special-device%s\n", #ifdef COMPAT " [device-type]"); #else ""); #endif fprintf(stderr, "where fsoptions are:\n"); fprintf(stderr, "\t-B LFS segment size\n"); fprintf(stderr, "\t-D debug\n"); fprintf(stderr, "\t-F mount flags\n"); fprintf(stderr, "\t-L create LFS file system\n"); fprintf(stderr, "\t-N do not create file system, just print out parameters\n"); fprintf(stderr, "\t-S sector size\n"); #ifdef COMPAT fprintf(stderr, "\t-T disktype\n"); #endif fprintf(stderr, "\t-a maximum contiguous blocks\n"); fprintf(stderr, "\t-b block size\n"); fprintf(stderr, "\t-c cylinders/group\n"); fprintf(stderr, "\t-d rotational delay between contiguous blocks\n"); fprintf(stderr, "\t-e maximum blocks per file in a cylinder group\n"); fprintf(stderr, "\t-f frag size\n"); fprintf(stderr, "\t-i number of bytes per inode\n"); fprintf(stderr, "\t-k sector 0 skew, per track\n"); fprintf(stderr, "\t-l hardware sector interleave\n"); fprintf(stderr, "\t-m minimum free space %%\n"); fprintf(stderr, "\t-n number of distinguished rotational positions\n"); fprintf(stderr, "\t-o optimization preference (`space' or `time')\n"); fprintf(stderr, "\t-p spare sectors per track\n"); fprintf(stderr, "\t-r revolutions/minute\n"); fprintf(stderr, "\t-s file system size (sectors)\n"); fprintf(stderr, "\t-u sectors/track\n"); fprintf(stderr, "\t-x spare sectors per cylinder\n"); fprintf(stderr, "\t-z tracks/cylinder\n"); exit(1); }