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-rw-r--r--sbin/newlfs/newfs.c483
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diff --git a/sbin/newlfs/newfs.c b/sbin/newlfs/newfs.c
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+/*-
+ * 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. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. 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
+static char sccsid[] = "@(#)newfs.c 8.3 (Berkeley) 4/22/94";
+#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/file.h>
+#include <sys/mount.h>
+
+#include <ufs/ufs/dir.h>
+#include <ufs/ufs/dinode.h>
+
+#include <errno.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <paths.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 __P((char *, int));
+static struct disklabel *debug_readlabel __P((int));
+static void rewritelabel __P((char *, int, struct disklabel *));
+static void usage __P((void));
+
+int
+main(argc, argv)
+ int argc;
+ char *argv[];
+{
+ register int ch;
+ register struct partition *pp;
+ register struct disklabel *lp;
+ struct partition oldpartition;
+ struct stat st;
+ int debug, lfs, fsi, fso, segsize;
+ char *cp, *opstring;
+
+ if (progname = rindex(*argv, '/'))
+ ++progname;
+ else
+ progname = *argv;
+
+ if (strstr(progname, "mfs")) {
+ mfs = 1;
+ Nflag++;
+ }
+
+ /* -F is mfs only and MUST come first! */
+ opstring = "F:B:DLNS:T:a:b:c:d:e:f:i:k:l:m:n:o:p:r:s:t:u:x:";
+ if (!mfs)
+ opstring += 2;
+
+ debug = lfs = segsize = 0;
+ while ((ch = getopt(argc, argv, opstring)) != EOF)
+ 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':
+ 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 (index(special, '/') == NULL) {
+ (void)sprintf(device, "%sr%s", _PATH_DEV, special);
+ if (stat(device, &st) == -1)
+ (void)sprintf(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 = index(argv[0], '\0') - 1;
+ if (!debug && (cp == 0 || (*cp < 'a' || *cp > 'h') && !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 (fsize == 0) {
+ fsize = pp->p_fsize;
+ if (fsize <= 0)
+ fsize = MAX(DFL_FRAGSIZE, lp->d_secsize);
+ }
+
+ if (bsize == 0) {
+ bsize = pp->p_frag * fsize;
+ if (bsize <= 0)
+ bsize = MIN(DFL_LFSBLOCK, 8 * fsize);
+ }
+
+ if (segsize == 0) {
+ segsize = pp->p_cpg * bsize;
+ if (segsize <= 0)
+ segsize = DFL_LFSSEG;
+ }
+
+ /* If we're making a LFS, we break out here */
+ exit(make_lfs(fso, lp, pp, minfree, bsize, 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(s, fd)
+ char *s;
+ int fd;
+{
+ static struct disklabel lab;
+
+ if (ioctl(fd, DIOCGDINFO, (char *)&lab) < 0) {
+#ifdef COMPAT
+ if (disktype) {
+ struct disklabel *lp, *getdiskbyname();
+
+ 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(fd)
+ 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(s, fd, lp)
+ char *s;
+ int fd;
+ register 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) {
+ register i;
+ int cfd;
+ daddr_t alt;
+ char specname[64];
+ char blk[1024];
+ char *cp;
+
+ /*
+ * Make name for 'c' partition.
+ */
+ strcpy(specname, s);
+ cp = specname + strlen(specname) - 1;
+ if (!isdigit(*cp))
+ *cp = 'c';
+ cfd = open(specname, O_WRONLY);
+ if (cfd < 0)
+ fatal("%s: %s", specname, strerror(errno));
+ bzero(blk, 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,
+ L_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()
+{
+ if (mfs) {
+ fprintf(stderr,
+ "usage: mfs [ -fsoptions ] special-device mount-point\n");
+ } else
+ fprintf(stderr,
+ "usage: newlfs [ -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-t tracks/cylinder\n");
+ fprintf(stderr, "\t-u sectors/track\n");
+ fprintf(stderr, "\t-x spare sectors per cylinder\n");
+ exit(1);
+}
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