NetBSD/distrib/utils/sysinst/label.c
garbled 865c31ac7b This change includes the following:
Scripting and logging functionality for sysinst.
Child programs are run in a "display window" so you can actually see what
	they did before the screen flashes back and you loose it all.
Lots of curses fixups.  Removed nasty endwins that mangled the tty upon
	rentry.
Change the yes/no box to accept Y or N, and not require cursor motion to
	decide one or the other.
Perform curses redraws when doing things that could cause the kernel to
	spew printfs onto your screen.
1999-01-21 08:02:17 +00:00

350 lines
8.4 KiB
C

/* $NetBSD: label.c,v 1.8 1999/01/21 08:02:18 garbled 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 1.8 1999/01/21 08:02:18 garbled 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(lp, i, rawpart, bsdpart)
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(lp, nparts, rawpart, bsdpart, ovly1, ovly2)
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(lp, nparts, rawpart, bsdpart)
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(lp)
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(lp, nparts)
partinfo *lp;
int nparts;
{
FILE *f;
int i;
#ifdef DEBUG
f = fopen("/tmp/disktab", "a");
#else
/* Create the disktab.preinstall */
run_prog(0, 0, "cp /etc/disktab.preinstall /etc/disktab");
f = fopen("/etc/disktab", "a");
#endif
if (logging)
(void)fprintf(log, "Creating disklabel %s\n", bsddiskname);
if (scripting)
(void)fprintf(script, "cat <<EOF >>/etc/disktab\n");
if (f == NULL) {
endwin();
(void)fprintf(stderr, "Could not open /etc/disktab");
if (logging)
(void)fprintf(log, "Failed to open /etc/diskabel for appending.\n");
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);
if (scripting) {
(void)fprintf(script, "%s|NetBSD installation generated:\\\n", bsddiskname);
(void)fprintf(script, "\t:dt=%s:ty=winchester:\\\n", disktype);
(void)fprintf(script, "\t:nc#%d:nt#%d:ns#%d:\\\n", dlcyl, dlhead, dlsec);
(void)fprintf(script, "\t:sc#%d:su#%d:\\\n", dlhead*dlsec, dlsize);
(void)fprintf(script, "\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 (scripting)
(void)fprintf(script, "\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:ta=4.2BSD:",
'a'+i, bsdlabel[i][D_BSIZE],
'a'+i, bsdlabel[i][D_FSIZE]);
if (scripting)
(void)fprintf (script, "b%c#%d:f%c#%d:ta=4.2BSD:",
'a'+i, bsdlabel[i][D_BSIZE],
'a'+i, bsdlabel[i][D_FSIZE]);
}
if (i < 7)
(void)fprintf(f, "\\\n");
else
(void)fprintf(f, "\n");
if (scripting) {
if (i < 7)
(void)fprintf(script, "\\\n");
else
(void)fprintf(script, "\n");
}
}
fclose (f);
if (scripting)
(void)fprintf(script, "EOF\n");
fflush(NULL);
return(0);
}
void
translate_partinfo(lp, pp)
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(dkname, lp)
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);
touchwin(stdscr);
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);
}