293 lines
7.0 KiB
C
293 lines
7.0 KiB
C
/* $NetBSD: label.c,v 1.4 1997/12/18 11:54:11 fvdl Exp $ */
|
|
|
|
/*
|
|
* Copyright 1997 Jonathan Stone
|
|
* 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 develooped for the NetBSD Project by
|
|
* Jonathan Stone.
|
|
* 4. The name of Jonathan Stone may not be used to endorse
|
|
* or promote products derived from this software without specific prior
|
|
* written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY JONATHAN STONE ``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 PIERMONT INFORMATION SYSTEMS INC. 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>
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
__RCSID("$NetBSD: label.c,v 1.4 1997/12/18 11:54:11 fvdl Exp $");
|
|
#endif
|
|
|
|
#include <sys/types.h>
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <fcntl.h>
|
|
#include <util.h>
|
|
#include <unistd.h>
|
|
#include <sys/dkio.h>
|
|
#include <sys/ioctl.h>
|
|
|
|
#include "defs.h"
|
|
#include "msg_defs.h"
|
|
#include "menu_defs.h"
|
|
|
|
/*
|
|
* local prototypes
|
|
*/
|
|
static int boringpart __P((partinfo *lp, int i, int rawpart, int bsdpart));
|
|
|
|
int checklabel __P((partinfo *lp, int nparts, int rawpart, int bsdpart,
|
|
int *bad1, int *bad2));
|
|
void translate_partinfo __P((partinfo *lp, struct partition *pp));
|
|
|
|
|
|
/*
|
|
* Return 1 iff partition i in lp should be ignored when checking
|
|
* for overlapping partitions.
|
|
*/
|
|
static int
|
|
boringpart(partinfo *lp, int i, int rawpart, int bsdpart)
|
|
{
|
|
|
|
if (i == rawpart || i == bsdpart ||
|
|
lp[i][D_FSTYPE] == T_UNUSED || lp[i][D_SIZE] == 0)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Check a sysinst label structure for overlapping partitions.
|
|
* Returns 0 if no overlapping partition found, nonzero otherwise.
|
|
* Sets reference arguments ovly1 and ovly2 to the indices of
|
|
* overlapping partitions if any are found.
|
|
*/
|
|
int
|
|
checklabel(partinfo *lp, int nparts, int rawpart, int bsdpart,
|
|
int *ovly1, int *ovly2)
|
|
{
|
|
int i;
|
|
int j;
|
|
|
|
*ovly1 = -1;
|
|
*ovly2 = -1;
|
|
|
|
for (i = 0; i < nparts - 1; i ++ ) {
|
|
int *ip = lp[i];
|
|
int istart, istop;
|
|
|
|
/* skip unused or reserved partitions */
|
|
if (boringpart(lp, i, rawpart, bsdpart))
|
|
continue;
|
|
|
|
/*
|
|
* check succeding partitions for overlap.
|
|
* O(n^2), but n is small (currently <= 16).
|
|
*/
|
|
istart = ip[D_OFFSET];
|
|
istop = istart + ip[D_SIZE];
|
|
|
|
for (j = i+1; j < nparts; j++) {
|
|
int *jp = lp[j];
|
|
int jstart, jstop;
|
|
|
|
/* skip unused or reserved partitions */
|
|
if (boringpart(lp, j, rawpart, bsdpart))
|
|
continue;
|
|
|
|
jstart = jp[D_OFFSET];
|
|
jstop = jstart + jp[D_SIZE];
|
|
|
|
/* overlap? */
|
|
if ((istart <= jstart && jstart < istop) ||
|
|
(jstart <= istart && istart < jstop)) {
|
|
*ovly1 = i;
|
|
*ovly2 = j;
|
|
return(1);
|
|
}
|
|
}
|
|
}
|
|
|
|
return(0);
|
|
}
|
|
|
|
|
|
/*
|
|
* Check a disklabel.
|
|
* If there are overlapping active parititons,
|
|
* Ask the user if they want to edit the parittion or give up.
|
|
*/
|
|
int
|
|
edit_and_check_label(partinfo *lp, int nparts, int rawpart, int bsdpart)
|
|
{
|
|
while (1) {
|
|
int i, j;
|
|
|
|
/* first give the user the option to edit the label... */
|
|
process_menu (MENU_fspartok);
|
|
|
|
/* User thinks the label is OK. check for overlaps.*/
|
|
if (checklabel(lp, nparts, rawpart, bsdpart, &i, &j) == 0) {
|
|
/* partitions are OK. */
|
|
return (1);
|
|
}
|
|
|
|
/* partitions overlap. */
|
|
msg_display(MSG_partitions_overlap, 'a' + i, 'a' + j);
|
|
/*XXX*/
|
|
msg_display_add(MSG_edit_partitions_again);
|
|
process_menu(MENU_yesno);
|
|
if (!yesno)
|
|
return(0);
|
|
}
|
|
|
|
/*NOTREACHED*/
|
|
}
|
|
|
|
|
|
void emptylabel(partinfo *lp)
|
|
{
|
|
register int i, maxpart;
|
|
|
|
maxpart = getmaxpartitions();
|
|
|
|
for (i = 0; i < maxpart; i++) {
|
|
lp[i][D_FSTYPE] = T_UNUSED;
|
|
lp[i][D_OFFSET] = 0;
|
|
lp[i][D_SIZE] = 0;
|
|
lp[i][D_BSIZE] = 0;
|
|
lp[i][D_FSIZE] = 0;
|
|
}
|
|
}
|
|
|
|
int
|
|
savenewlabel(partinfo *lp, int nparts)
|
|
{
|
|
FILE *f;
|
|
int i;
|
|
|
|
#ifdef DEBUG
|
|
f = fopen ("/tmp/disktab", "a");
|
|
#else
|
|
f = fopen ("/etc/disktab", "a");
|
|
#endif
|
|
if (f == NULL) {
|
|
endwin();
|
|
(void) fprintf (stderr, "Could not open /etc/disktab");
|
|
exit (1);
|
|
}
|
|
(void)fprintf (f, "%s|NetBSD installation generated:\\\n", bsddiskname);
|
|
(void)fprintf (f, "\t:dt=%s:ty=winchester:\\\n", disktype);
|
|
(void)fprintf (f, "\t:nc#%d:nt#%d:ns#%d:\\\n", dlcyl, dlhead, dlsec);
|
|
(void)fprintf (f, "\t:sc#%d:su#%d:\\\n", dlhead*dlsec, dlsize);
|
|
(void)fprintf (f, "\t:se#%d:%s\\\n", sectorsize, doessf);
|
|
for (i=0; i < nparts; i++) {
|
|
(void)fprintf (f, "\t:p%c#%d:o%c#%d:t%c=%s:",
|
|
'a'+i, bsdlabel[i][D_SIZE],
|
|
'a'+i, bsdlabel[i][D_OFFSET],
|
|
'a'+i, fstype[bsdlabel[i][D_FSTYPE]]);
|
|
if (bsdlabel[i][D_FSTYPE] == T_42BSD)
|
|
(void)fprintf (f, "b%c#%d:f%c#%d",
|
|
'a'+i, bsdlabel[i][D_BSIZE],
|
|
'a'+i, bsdlabel[i][D_FSIZE]);
|
|
if (i < 7)
|
|
(void)fprintf (f, "\\\n");
|
|
else
|
|
(void)fprintf (f, "\n");
|
|
}
|
|
fclose (f);
|
|
|
|
return(0);
|
|
}
|
|
|
|
|
|
void
|
|
translate_partinfo(partinfo *lp, struct partition *pp)
|
|
{
|
|
switch (pp->p_fstype) {
|
|
|
|
case FS_UNUSED: /* XXX */
|
|
(*lp)[D_FSTYPE] = T_UNUSED;
|
|
break;
|
|
|
|
case FS_SWAP:
|
|
(*lp)[D_FSTYPE] = T_SWAP;
|
|
break;
|
|
|
|
case FS_BSDFFS:
|
|
(*lp)[D_FSTYPE] = T_42BSD;
|
|
(*lp)[D_OFFSET] = 0;
|
|
(*lp)[D_SIZE] = 0;
|
|
(*lp)[D_BSIZE] = pp->p_fsize * pp->p_frag;
|
|
(*lp)[D_FSIZE] = pp->p_fsize;
|
|
break;
|
|
|
|
case FS_EX2FS:
|
|
(*lp)[D_FSTYPE] = T_UNUSED; /* XXX */
|
|
(*lp)[D_BSIZE] = pp->p_fsize * pp->p_frag;
|
|
(*lp)[D_FSIZE] = pp->p_fsize;
|
|
break;
|
|
|
|
default:
|
|
(*lp)[D_FSTYPE] = T_UNUSED;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Read a label from disk into a sysist label structure.
|
|
*/
|
|
int incorelabel(const char *dkname, partinfo *lp)
|
|
{
|
|
struct disklabel lab;
|
|
int fd;
|
|
int i, maxpart;
|
|
struct partition *pp;
|
|
char nambuf[STRSIZE];
|
|
|
|
fd = opendisk(dkname, O_RDONLY, nambuf, STRSIZE, 0);
|
|
|
|
if (ioctl(fd, DIOCGDINFO, &lab) < 0) {
|
|
/*XXX err(4, "ioctl DIOCGDINFO");*/
|
|
return(errno);
|
|
}
|
|
close(fd);
|
|
|
|
maxpart = getmaxpartitions();
|
|
if (maxpart > 16) maxpart = 16;
|
|
|
|
|
|
/* XXX set globals used by MD code to compute disk size? */
|
|
|
|
pp = &lab.d_partitions[0];
|
|
emptylabel(lp);
|
|
for (i = 0; i < maxpart; i++) {
|
|
translate_partinfo(lp+i, pp+i);
|
|
}
|
|
|
|
return (0);
|
|
}
|