Moved from mbrlabel.c,v
This commit is contained in:
fvdl
parent
cf8ce84f5b
commit
4fc21ef227
|
|
@ -0,0 +1,246 @@
|
|||
/* $NetBSD: mbrlabel.c,v 1.7 2000/03/15 11:56:02 fvdl Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (C) 1998 Wolfgang Solfrank.
|
||||
* Copyright (C) 1998 TooLs GmbH.
|
||||
* 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 TooLs GmbH.
|
||||
* 4. The name of TooLs GmbH may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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.
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
#ifndef lint
|
||||
__RCSID("$NetBSD: mbrlabel.c,v 1.7 2000/03/15 11:56:02 fvdl Exp $");
|
||||
#endif /* not lint */
|
||||
|
||||
#include <stdio.h>
|
||||
#include <fcntl.h>
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
#include <util.h>
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/disklabel.h>
|
||||
#include <sys/disklabel_mbr.h>
|
||||
#include <sys/ioctl.h>
|
||||
|
||||
#include "dkcksum.h"
|
||||
|
||||
#define FIRSTPART 0
|
||||
|
||||
int main __P((int, char **));
|
||||
void usage __P((void));
|
||||
void getlabel __P((int));
|
||||
void setlabel __P((int));
|
||||
int getparts __P((int, int, u_int32_t, u_int32_t));
|
||||
int nbsdtype __P((int));
|
||||
u_int32_t getlong __P((void *p));
|
||||
|
||||
struct disklabel label;
|
||||
|
||||
void
|
||||
getlabel(sd)
|
||||
int sd;
|
||||
{
|
||||
struct partition save;
|
||||
|
||||
if (ioctl(sd, DIOCGDINFO, &label) < 0) {
|
||||
perror("get label");
|
||||
exit(1);
|
||||
}
|
||||
save = label.d_partitions[RAW_PART];
|
||||
memset(label.d_partitions, 0, sizeof label.d_partitions);
|
||||
label.d_partitions[RAW_PART] = save;
|
||||
/*
|
||||
* Some ports seem to not set the number of partitions
|
||||
* correctly, albeit they seem to set the raw partiton ok!
|
||||
*/
|
||||
if (label.d_npartitions <= RAW_PART)
|
||||
label.d_npartitions = RAW_PART + 1;
|
||||
}
|
||||
|
||||
void
|
||||
setlabel(sd)
|
||||
int sd;
|
||||
{
|
||||
label.d_checksum = 0;
|
||||
label.d_checksum = dkcksum(&label);
|
||||
if (ioctl(sd, DIOCSDINFO, &label) < 0) {
|
||||
perror("set label");
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
static struct typetab {
|
||||
int mbrtype;
|
||||
int nbsdtype;
|
||||
} typetable[] = {
|
||||
{ MBR_PTYPE_NETBSD, FS_BSDFFS },
|
||||
{ MBR_PTYPE_386BSD, FS_BSDFFS },
|
||||
{ MBR_PTYPE_FAT12, FS_MSDOS },
|
||||
{ MBR_PTYPE_FAT16S, FS_MSDOS },
|
||||
{ MBR_PTYPE_FAT16B, FS_MSDOS },
|
||||
{ MBR_PTYPE_FAT32, FS_MSDOS },
|
||||
{ MBR_PTYPE_FAT32L, FS_MSDOS },
|
||||
{ MBR_PTYPE_FAT16L, FS_MSDOS },
|
||||
{ MBR_PTYPE_LNXEXT2, FS_EX2FS },
|
||||
{ 0, 0 }
|
||||
};
|
||||
|
||||
int
|
||||
nbsdtype(type)
|
||||
int type;
|
||||
{
|
||||
struct typetab *tt;
|
||||
|
||||
for (tt = typetable; tt->mbrtype; tt++)
|
||||
if (tt->mbrtype == type)
|
||||
return tt->nbsdtype;
|
||||
return FS_OTHER;
|
||||
}
|
||||
|
||||
u_int32_t
|
||||
getlong(p)
|
||||
void *p;
|
||||
{
|
||||
unsigned char *cp = p;
|
||||
|
||||
return cp[0] | (cp[1] << 8) | (cp[2] << 16) | (cp[3] << 24);
|
||||
}
|
||||
|
||||
int
|
||||
getparts(sd, np, off, eoff)
|
||||
int sd;
|
||||
int np;
|
||||
u_int32_t off;
|
||||
u_int32_t eoff;
|
||||
{
|
||||
unsigned char buf[DEV_BSIZE];
|
||||
struct mbr_partition parts[NMBRPART];
|
||||
off_t loff = 0; /* XXX this nonsense shuts up GCC 2.7.2.2 */
|
||||
int i;
|
||||
|
||||
loff = (off_t)off * DEV_BSIZE;
|
||||
|
||||
if (lseek(sd, loff, SEEK_SET) != loff) {
|
||||
perror("seek label");
|
||||
exit(1);
|
||||
}
|
||||
if (read(sd, buf, DEV_BSIZE) != DEV_BSIZE) {
|
||||
perror("read label");
|
||||
exit(1);
|
||||
}
|
||||
if (buf[0x1fe] != 0x55 || buf[0x1ff] != 0xaa)
|
||||
return np;
|
||||
memcpy(parts, buf + MBR_PARTOFF, sizeof parts);
|
||||
for (i = 0; i < NMBRPART; i++) {
|
||||
switch (parts[i].mbrp_typ) {
|
||||
case 0:
|
||||
/* Nothing to do */
|
||||
break;
|
||||
case MBR_PTYPE_EXT:
|
||||
case MBR_PTYPE_EXT_LBA:
|
||||
case MBR_PTYPE_EXT_LNX:
|
||||
/* Will be handled below */
|
||||
break;
|
||||
default:
|
||||
label.d_partitions[np].p_size = getlong(&parts[i].mbrp_size);
|
||||
label.d_partitions[np].p_offset = getlong(&parts[i].mbrp_start) + off;
|
||||
label.d_partitions[np].p_fstype = nbsdtype(parts[i].mbrp_typ);
|
||||
switch (label.d_partitions[np].p_fstype) {
|
||||
case FS_BSDFFS:
|
||||
label.d_partitions[np].p_size = 16384;
|
||||
label.d_partitions[np].p_fsize = 1024;
|
||||
label.d_partitions[np].p_frag = 8;
|
||||
label.d_partitions[np].p_cpg = 16;
|
||||
break;
|
||||
#ifdef __does_not_happen__
|
||||
case FS_BSDLFS:
|
||||
label.d_partitions[np].p_size = 16384;
|
||||
label.d_partitions[np].p_fsize = 1024;
|
||||
label.d_partitions[np].p_frag = 8;
|
||||
label.d_partitions[np].p_sgs = XXX;
|
||||
break;
|
||||
#endif
|
||||
}
|
||||
np++;
|
||||
break;
|
||||
}
|
||||
if (np >MAXPARTITIONS)
|
||||
return np;
|
||||
if (np == RAW_PART)
|
||||
np++;
|
||||
}
|
||||
for (i = 0; i < NMBRPART; i++) {
|
||||
u_int32_t poff;
|
||||
|
||||
switch (parts[i].mbrp_typ) {
|
||||
case MBR_PTYPE_EXT:
|
||||
case MBR_PTYPE_EXT_LBA:
|
||||
case MBR_PTYPE_EXT_LNX:
|
||||
poff = getlong(&parts[i].mbrp_start) + eoff;
|
||||
np = getparts(sd, np, poff, eoff ? eoff : poff);
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
if (np >MAXPARTITIONS)
|
||||
return np;
|
||||
}
|
||||
return np;
|
||||
}
|
||||
|
||||
void
|
||||
usage()
|
||||
{
|
||||
fprintf(stderr, "usage: mbrlabel rawdisk\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
int
|
||||
main(argc, argv)
|
||||
int argc;
|
||||
char **argv;
|
||||
{
|
||||
int sd;
|
||||
int np;
|
||||
char name[MAXPATHLEN];
|
||||
|
||||
if (argc != 2)
|
||||
usage();
|
||||
|
||||
if ((sd = opendisk(*++argv, O_RDWR, name, MAXPATHLEN, 0)) < 0) {
|
||||
perror(*argv);
|
||||
exit(1);
|
||||
}
|
||||
getlabel(sd);
|
||||
np = getparts(sd, FIRSTPART, MBR_BBSECTOR, 0);
|
||||
if (np > label.d_npartitions)
|
||||
label.d_npartitions = np;
|
||||
setlabel(sd);
|
||||
close(sd);
|
||||
return 0;
|
||||
}
|
||||
Loading…
Reference in New Issue