/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* University Copyright- Copyright (c) 1982, 1986, 1988
* The Regents of the University of California
* All Rights Reserved
*
* University Acknowledgment- Portions of this document are derived from
* software developed by the University of California, Berkeley, and its
* contributors.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* Label a file system volume.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/mntent.h>
#include <locale.h>
#define bcopy(f, t, n) (void) memcpy(t, f, n)
#define bzero(s, n) memset(s, 0, n)
#define bcmp(s, d, n) memcmp(s, d, n)
#define index(s, r) strchr(s, r)
#define rindex(s, r) strrchr(s, r)
#include <sys/vnode.h>
#include <fcntl.h>
#include <sys/fs/ufs_inode.h>
#include <sys/fs/ufs_fs.h>
static void usage();
static void label(char *, char *, char *);
static union sbtag {
char dummy[SBSIZE];
struct fs sblk;
} sb_un, altsb_un;
#define sblock sb_un.sblk
#define altsblock altsb_un.sblk
extern int optind;
extern char *optarg;
int
main(int argc, char *argv[])
{
int opt;
char *special = NULL;
char *fsname = NULL;
char *volume = NULL;
while ((opt = getopt(argc, argv, "o:")) != EOF) {
switch (opt) {
case 'o': /* specific options (none defined yet) */
break;
case '?':
usage();
}
}
if (optind > (argc - 1)) {
usage();
}
argc -= optind;
argv = &argv[optind];
special = argv[0];
if (argc > 1) {
fsname = argv[1];
if (strlen(fsname) > 6) {
(void) fprintf(stderr, gettext("labelit: "));
(void) fprintf(stderr,
gettext("fsname can not be longer than 6 characters\n"));
exit(31+1);
}
}
if (argc > 2) {
volume = argv[2];
if (strlen(volume) > 6) {
(void) fprintf(stderr, gettext("labelit: "));
(void) fprintf(stderr,
gettext("volume can not be longer than 6 characters\n"));
exit(31+1);
}
}
label(special, fsname, volume);
return (0);
}
void
usage()
{
(void) fprintf(stderr, gettext(
"ufs usage: labelit [-F ufs] [gen opts] special [fsname volume]\n"));
exit(31+1);
}
void
label(char *special, char *fsname, char *volume)
{
int f;
int blk;
int i;
char *p;
offset_t offset;
struct fs *fsp, *altfsp;
if (fsname == NULL) {
f = open64(special, O_RDONLY);
} else {
f = open64(special, O_RDWR);
}
if (f < 0) {
(void) fprintf(stderr, gettext("labelit: "));
perror("open");
exit(31+1);
}
if (llseek(f, (offset_t)SBLOCK * DEV_BSIZE, 0) < 0) {
(void) fprintf(stderr, gettext("labelit: "));
perror("llseek");
exit(31+1);
}
if (read(f, &sblock, SBSIZE) != SBSIZE) {
(void) fprintf(stderr, gettext("labelit: "));
perror("read");
exit(31+1);
}
if ((sblock.fs_magic != FS_MAGIC) &&
(sblock.fs_magic != MTB_UFS_MAGIC)) {
(void) fprintf(stderr, gettext("labelit: "));
(void) fprintf(stderr,
gettext("bad super block magic number\n"));
exit(31+1);
}
if ((sblock.fs_magic == FS_MAGIC) &&
((sblock.fs_version != UFS_EFISTYLE4NONEFI_VERSION_2) &&
(sblock.fs_version != UFS_VERSION_MIN))) {
(void) fprintf(stderr, gettext("labelit: "));
(void) fprintf(stderr,
gettext("unrecognized UFS format version: %d\n"),
sblock.fs_version);
exit(31+1);
}
if ((sblock.fs_magic == MTB_UFS_MAGIC) &&
((sblock.fs_version > MTB_UFS_VERSION_1) ||
(sblock.fs_version < MTB_UFS_VERSION_MIN))) {
(void) fprintf(stderr, gettext("labelit: "));
(void) fprintf(stderr,
gettext("unrecognized UFS format version: %d\n"),
sblock.fs_version);
exit(31+1);
}
fsp = &sblock;
/*
* Is block layout available?
*/
if (sblock.fs_cpc <= 0 && (fsname || volume)) {
(void) fprintf(stderr, gettext("labelit: "));
(void) fprintf(stderr,
gettext("insufficient superblock space for file system label\n"));
return;
}
/*
* calculate the available blocks for each rotational position
*/
blk = sblock.fs_spc * sblock.fs_cpc / NSPF(&sblock);
for (i = 0; i < blk; i += sblock.fs_frag)
/* void */;
i -= sblock.fs_frag;
blk = i / sblock.fs_frag;
p = (char *)&(fs_rotbl(fsp)[blk]);
if (fsname != NULL) {
for (i = 0; i < 14; i++)
p[i] = '\0';
for (i = 0; (i < 6) && (fsname[i]); i++, p++)
*p = fsname[i];
p++;
}
if (volume != NULL) {
for (i = 0; (i < 6) && (volume[i]); i++, p++)
*p = volume[i];
}
if (fsname != NULL) {
if (llseek(f, (offset_t)SBLOCK * DEV_BSIZE, 0) < 0) {
(void) fprintf(stderr, gettext("labelit: "));
perror("llseek");
exit(31+1);
}
if (write(f, &sblock, SBSIZE) != SBSIZE) {
(void) fprintf(stderr, gettext("labelit: "));
perror("write");
exit(31+1);
}
for (i = 0; i < sblock.fs_ncg; i++) {
/*
* In the case of multi-terabyte ufs file
* systems, only the first ten and last ten
* cylinder groups have copies of the superblock.
*/
if (sblock.fs_magic == MTB_UFS_MAGIC &&
sblock.fs_ncg > 20 &&
(i >= 10 && i < sblock.fs_ncg - 10))
continue;
offset =
(offset_t)cgsblock(&sblock, i) * sblock.fs_fsize;
if (llseek(f, offset, 0) < 0) {
(void) fprintf(stderr, gettext("labelit: "));
perror("lseek");
exit(31+1);
}
altfsp = &altsblock;
if (read(f, &altsblock, SBSIZE) != SBSIZE) {
(void) fprintf(stderr, gettext("labelit: "));
perror("read");
exit(31+1);
}
if ((altsblock.fs_magic != FS_MAGIC) &&
(altsblock.fs_magic != MTB_UFS_MAGIC)) {
(void) fprintf(stderr, gettext("labelit: "));
(void) fprintf(stderr,
gettext("bad alternate super block(%i) magic number\n"), i);
exit(31+1);
}
if ((altsblock.fs_magic == FS_MAGIC) &&
((altsblock.fs_version !=
UFS_EFISTYLE4NONEFI_VERSION_2) &&
(altsblock.fs_version != UFS_VERSION_MIN))) {
(void) fprintf(stderr, gettext("labelit: "));
(void) fprintf(stderr,
gettext("bad alternate super block UFS format version: %d\n"),
altsblock.fs_version);
exit(31+1);
}
if ((altsblock.fs_magic == MTB_UFS_MAGIC) &&
((altsblock.fs_version > MTB_UFS_VERSION_1) ||
(altsblock.fs_version < MTB_UFS_VERSION_MIN))) {
(void) fprintf(stderr, gettext("labelit: "));
(void) fprintf(stderr,
gettext("bad alternate super block UFS format version: %d\n"),
altsblock.fs_version);
exit(31+1);
}
bcopy((char *)&(fs_rotbl(fsp)[blk]),
(char *)&(fs_rotbl(altfsp)[blk]), 14);
if (llseek(f, offset, 0) < 0) {
(void) fprintf(stderr, gettext("labelit: "));
perror("llseek");
exit(31+1);
}
if (write(f, &altsblock, SBSIZE) != SBSIZE) {
(void) fprintf(stderr, gettext("labelit: "));
perror("write");
exit(31+1);
}
}
}
p = (char *)&(fs_rotbl(fsp)[blk]);
(void) fprintf(stderr, gettext("fsname: "));
for (i = 0; (i < 6) && (*p); i++, p++) {
(void) fprintf(stderr, "%c", *p);
}
(void) fprintf(stderr, "\n");
(void) fprintf(stderr, gettext("volume: "));
p++;
for (i = 0; (i < 6); i++, p++) {
(void) fprintf(stderr, "%c", *p);
}
(void) fprintf(stderr, "\n");
}