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Editing: newfs.c
/*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 2002 Networks Associates Technology, Inc. * All rights reserved. * * This software was developed for the FreeBSD Project by Marshall * Kirk McKusick and Network Associates Laboratories, the Security * Research Division of Network Associates, Inc. under DARPA/SPAWAR * contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS * research program. * * Copyright (c) 1983, 1989, 1993, 1994 * 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. */ #if 0 #ifndef lint static const char copyright[] = "@(#) Copyright (c) 1983, 1989, 1993, 1994\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #ifndef lint static char sccsid[] = "@(#)newfs.c 8.13 (Berkeley) 5/1/95"; #endif /* not lint */ #endif #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); /* * newfs: friendly front end to mkfs */ #include <sys/param.h> #include <sys/stat.h> #include <sys/disk.h> #include <sys/disklabel.h> #include <sys/file.h> #include <sys/mount.h> #include <ufs/ufs/dir.h> #include <ufs/ufs/dinode.h> #include <ufs/ffs/fs.h> #include <ufs/ufs/ufsmount.h> #include <ctype.h> #include <err.h> #include <errno.h> #include <inttypes.h> #include <paths.h> #include <stdarg.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <syslog.h> #include <unistd.h> #include <libutil.h> #include "newfs.h" int Eflag; /* Erase previous disk contents */ int Lflag; /* add a volume label */ int Nflag; /* run without writing file system */ int Oflag = 2; /* file system format (1 => UFS1, 2 => UFS2) */ int Rflag; /* regression test */ int Uflag; /* enable soft updates for file system */ int jflag; /* enable soft updates journaling for filesys */ int Xflag = 0; /* exit in middle of newfs for testing */ int Jflag; /* enable gjournal for file system */ int lflag; /* enable multilabel for file system */ int nflag; /* do not create .snap directory */ int tflag; /* enable TRIM */ intmax_t fssize; /* file system size */ off_t mediasize; /* device size */ int sectorsize; /* bytes/sector */ int realsectorsize; /* bytes/sector in hardware */ int fsize = 0; /* fragment size */ int bsize = 0; /* block size */ int maxbsize = 0; /* maximum clustering */ int maxblkspercg = MAXBLKSPERCG; /* maximum blocks per cylinder group */ int minfree = MINFREE; /* free space threshold */ int metaspace; /* space held for metadata blocks */ int opt = DEFAULTOPT; /* optimization preference (space or time) */ int density; /* number of bytes per inode */ int maxcontig = 0; /* max contiguous blocks to allocate */ int maxbpg; /* maximum blocks per file in a cyl group */ int avgfilesize = AVFILESIZ;/* expected average file size */ int avgfilesperdir = AFPDIR;/* expected number of files per directory */ u_char *volumelabel = NULL; /* volume label for filesystem */ struct uufsd disk; /* libufs disk structure */ static char device[MAXPATHLEN]; static u_char bootarea[BBSIZE]; static int is_file; /* work on a file, not a device */ static char *dkname; static char *disktype; static void getfssize(intmax_t *, const char *p, intmax_t, intmax_t); static struct disklabel *getdisklabel(void); static void usage(void); static int expand_number_int(const char *buf, int *num); ufs2_daddr_t part_ofs; /* partition offset in blocks, used with files */ int main(int argc, char *argv[]) { struct partition *pp; struct disklabel *lp; struct stat st; char *cp, *special; intmax_t reserved; int ch, i, rval; char part_name; /* partition name, default to full disk */ part_name = 'c'; reserved = 0; while ((ch = getopt(argc, argv, "EJL:NO:RS:T:UXa:b:c:d:e:f:g:h:i:jk:lm:no:p:r:s:t")) != -1) switch (ch) { case 'E': Eflag = 1; break; case 'J': Jflag = 1; break; case 'L': volumelabel = optarg; i = -1; while (isalnum(volumelabel[++i]) || volumelabel[i] == '_' || volumelabel[i] == '-'); if (volumelabel[i] != '\0') { errx(1, "bad volume label. Valid characters " "are alphanumerics, dashes, and underscores."); } if (strlen(volumelabel) >= MAXVOLLEN) { errx(1, "bad volume label. Length is longer than %d.", MAXVOLLEN); } Lflag = 1; break; case 'N': Nflag = 1; break; case 'O': if ((Oflag = atoi(optarg)) < 1 || Oflag > 2) errx(1, "%s: bad file system format value", optarg); break; case 'R': Rflag = 1; break; case 'S': rval = expand_number_int(optarg, §orsize); if (rval < 0 || sectorsize <= 0) errx(1, "%s: bad sector size", optarg); break; case 'T': disktype = optarg; break; case 'j': jflag = 1; /* fall through to enable soft updates */ /* FALLTHROUGH */ case 'U': Uflag = 1; break; case 'X': Xflag++; break; case 'a': rval = expand_number_int(optarg, &maxcontig); if (rval < 0 || maxcontig <= 0) errx(1, "%s: bad maximum contiguous blocks", optarg); break; case 'b': rval = expand_number_int(optarg, &bsize); if (rval < 0) errx(1, "%s: bad block size", optarg); if (bsize < MINBSIZE) errx(1, "%s: block size too small, min is %d", optarg, MINBSIZE); if (bsize > MAXBSIZE) errx(1, "%s: block size too large, max is %d", optarg, MAXBSIZE); break; case 'c': rval = expand_number_int(optarg, &maxblkspercg); if (rval < 0 || maxblkspercg <= 0) errx(1, "%s: bad blocks per cylinder group", optarg); break; case 'd': rval = expand_number_int(optarg, &maxbsize); if (rval < 0 || maxbsize < MINBSIZE) errx(1, "%s: bad extent block size", optarg); break; case 'e': rval = expand_number_int(optarg, &maxbpg); if (rval < 0 || maxbpg <= 0) errx(1, "%s: bad blocks per file in a cylinder group", optarg); break; case 'f': rval = expand_number_int(optarg, &fsize); if (rval < 0 || fsize <= 0) errx(1, "%s: bad fragment size", optarg); break; case 'g': rval = expand_number_int(optarg, &avgfilesize); if (rval < 0 || avgfilesize <= 0) errx(1, "%s: bad average file size", optarg); break; case 'h': rval = expand_number_int(optarg, &avgfilesperdir); if (rval < 0 || avgfilesperdir <= 0) errx(1, "%s: bad average files per dir", optarg); break; case 'i': rval = expand_number_int(optarg, &density); if (rval < 0 || density <= 0) errx(1, "%s: bad bytes per inode", optarg); break; case 'l': lflag = 1; break; case 'k': if ((metaspace = atoi(optarg)) < 0) errx(1, "%s: bad metadata space %%", optarg); if (metaspace == 0) /* force to stay zero in mkfs */ metaspace = -1; break; case 'm': if ((minfree = atoi(optarg)) < 0 || minfree > 99) errx(1, "%s: bad free space %%", optarg); break; case 'n': nflag = 1; break; case 'o': if (strcmp(optarg, "space") == 0) opt = FS_OPTSPACE; else if (strcmp(optarg, "time") == 0) opt = FS_OPTTIME; else errx(1, "%s: unknown optimization preference: use `space' or `time'", optarg); break; case 'r': errno = 0; reserved = strtoimax(optarg, &cp, 0); if (errno != 0 || cp == optarg || *cp != '\0' || reserved < 0) errx(1, "%s: bad reserved size", optarg); break; case 'p': is_file = 1; part_name = optarg[0]; break; case 's': errno = 0; fssize = strtoimax(optarg, &cp, 0); if (errno != 0 || cp == optarg || *cp != '\0' || fssize < 0) errx(1, "%s: bad file system size", optarg); break; case 't': tflag = 1; break; case '?': default: usage(); } argc -= optind; argv += optind; if (argc != 1) usage(); special = argv[0]; if (!special[0]) err(1, "empty file/special name"); cp = strrchr(special, '/'); if (cp == NULL) { /* * No path prefix; try prefixing _PATH_DEV. */ snprintf(device, sizeof(device), "%s%s", _PATH_DEV, special); special = device; } if (is_file) { /* bypass ufs_disk_fillout_blank */ bzero( &disk, sizeof(disk)); disk.d_bsize = 1; disk.d_name = special; disk.d_fd = open(special, O_RDONLY); if (disk.d_fd < 0 || (!Nflag && ufs_disk_write(&disk) == -1)) errx(1, "%s: ", special); } else if (ufs_disk_fillout_blank(&disk, special) == -1 || (!Nflag && ufs_disk_write(&disk) == -1)) { if (disk.d_error != NULL) errx(1, "%s: %s", special, disk.d_error); else err(1, "%s", special); } if (fstat(disk.d_fd, &st) < 0) err(1, "%s", special); if ((st.st_mode & S_IFMT) != S_IFCHR) { warn("%s: not a character-special device", special); is_file = 1; /* assume it is a file */ dkname = special; if (sectorsize == 0) sectorsize = 512; mediasize = st.st_size; /* set fssize from the partition */ } else { if (sectorsize == 0) if (ioctl(disk.d_fd, DIOCGSECTORSIZE, §orsize) == -1) sectorsize = 0; /* back out on error for safety */ if (sectorsize && ioctl(disk.d_fd, DIOCGMEDIASIZE, &mediasize) != -1) getfssize(&fssize, special, mediasize / sectorsize, reserved); } pp = NULL; lp = getdisklabel(); if (lp != NULL) { if (!is_file) /* already set for files */ part_name = special[strlen(special) - 1]; if ((part_name < 'a' || part_name - 'a' >= MAXPARTITIONS) && !isdigit(part_name)) errx(1, "%s: can't figure out file system partition", special); cp = &part_name; if (isdigit(*cp)) pp = &lp->d_partitions[RAW_PART]; else pp = &lp->d_partitions[*cp - 'a']; if (pp->p_size == 0) errx(1, "%s: `%c' partition is unavailable", special, *cp); if (pp->p_fstype == FS_BOOT) errx(1, "%s: `%c' partition overlaps boot program", special, *cp); getfssize(&fssize, special, pp->p_size, reserved); if (sectorsize == 0) sectorsize = lp->d_secsize; if (fsize == 0) fsize = pp->p_fsize; if (bsize == 0) bsize = pp->p_frag * pp->p_fsize; if (is_file) part_ofs = pp->p_offset; } if (sectorsize <= 0) errx(1, "%s: no default sector size", special); if (fsize <= 0) fsize = MAX(DFL_FRAGSIZE, sectorsize); if (bsize <= 0) bsize = MIN(DFL_BLKSIZE, 8 * fsize); if (minfree < MINFREE && opt != FS_OPTSPACE) { fprintf(stderr, "Warning: changing optimization to space "); fprintf(stderr, "because minfree is less than %d%%\n", MINFREE); opt = FS_OPTSPACE; } realsectorsize = sectorsize; if (sectorsize != DEV_BSIZE) { /* XXX */ int secperblk = sectorsize / DEV_BSIZE; sectorsize = DEV_BSIZE; fssize *= secperblk; if (pp != NULL) pp->p_size *= secperblk; } mkfs(pp, special); ufs_disk_close(&disk); if (!jflag) exit(0); if (execlp("tunefs", "newfs", "-j", "enable", special, NULL) < 0) err(1, "Cannot enable soft updates journaling, tunefs"); /* NOT REACHED */ } void getfssize(intmax_t *fsz, const char *s, intmax_t disksize, intmax_t reserved) { intmax_t available; available = disksize - reserved; if (available <= 0) errx(1, "%s: reserved not less than device size %jd", s, disksize); if (*fsz == 0) *fsz = available; else if (*fsz > available) errx(1, "%s: maximum file system size is %jd", s, available); } struct disklabel * getdisklabel(void) { static struct disklabel lab; struct disklabel *lp; if (is_file) { if (read(disk.d_fd, bootarea, BBSIZE) != BBSIZE) err(4, "cannot read bootarea"); if (bsd_disklabel_le_dec( bootarea + (0 /* labeloffset */ + 1 /* labelsoffset */ * sectorsize), &lab, MAXPARTITIONS)) errx(1, "no valid label found"); lp = &lab; return &lab; } if (disktype) { lp = getdiskbyname(disktype); if (lp != NULL) return (lp); } return (NULL); } static void usage(void) { fprintf(stderr, "usage: %s [ -fsoptions ] special-device%s\n", getprogname(), " [device-type]"); fprintf(stderr, "where fsoptions are:\n"); fprintf(stderr, "\t-E Erase previous disk content\n"); fprintf(stderr, "\t-J Enable journaling via gjournal\n"); fprintf(stderr, "\t-L volume label to add to superblock\n"); fprintf(stderr, "\t-N do not create file system, just print out parameters\n"); fprintf(stderr, "\t-O file system format: 1 => UFS1, 2 => UFS2\n"); fprintf(stderr, "\t-R regression test, suppress random factors\n"); fprintf(stderr, "\t-S sector size\n"); fprintf(stderr, "\t-T disktype\n"); fprintf(stderr, "\t-U enable soft updates\n"); fprintf(stderr, "\t-a maximum contiguous blocks\n"); fprintf(stderr, "\t-b block size\n"); fprintf(stderr, "\t-c blocks per cylinders group\n"); fprintf(stderr, "\t-d maximum extent size\n"); fprintf(stderr, "\t-e maximum blocks per file in a cylinder group\n"); fprintf(stderr, "\t-f frag size\n"); fprintf(stderr, "\t-g average file size\n"); fprintf(stderr, "\t-h average files per directory\n"); fprintf(stderr, "\t-i number of bytes per inode\n"); fprintf(stderr, "\t-j enable soft updates journaling\n"); fprintf(stderr, "\t-k space to hold for metadata blocks\n"); fprintf(stderr, "\t-l enable multilabel MAC\n"); fprintf(stderr, "\t-n do not create .snap directory\n"); fprintf(stderr, "\t-m minimum free space %%\n"); fprintf(stderr, "\t-o optimization preference (`space' or `time')\n"); fprintf(stderr, "\t-p partition name (a..h)\n"); fprintf(stderr, "\t-r reserved sectors at the end of device\n"); fprintf(stderr, "\t-s file system size (sectors)\n"); fprintf(stderr, "\t-t enable TRIM\n"); exit(1); } static int expand_number_int(const char *buf, int *num) { int64_t num64; int rval; rval = expand_number(buf, &num64); if (rval < 0) return (rval); if (num64 > INT_MAX || num64 < INT_MIN) { errno = ERANGE; return (-1); } *num = (int)num64; return (0); }
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