NetBSD-5.0.2/usr.sbin/installboot/arch/hp300.c
/* $NetBSD: hp300.c,v 1.10 2008/04/28 20:24:16 martin Exp $ */
/*-
* Copyright (c) 2003 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by David Laight.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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 HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif
#include <sys/cdefs.h>
#if !defined(__lint)
__RCSID("$NetBSD: hp300.c,v 1.10 2008/04/28 20:24:16 martin Exp $");
#endif /* !__lint */
/* We need the target disklabel.h, not the hosts one..... */
#ifdef HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#include <nbinclude/sys/disklabel.h>
#else
#include <sys/disklabel.h>
#endif
#include <sys/fcntl.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/param.h>
#include <assert.h>
#include <err.h>
#include <md5.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "installboot.h"
static int hp300_setboot(ib_params *);
struct ib_mach ib_mach_hp300 =
{ "hp300", hp300_setboot, no_clearboot, no_editboot, IB_APPEND };
static int
hp300_setboot(ib_params *params)
{
int retval;
uint8_t *bootstrap;
ssize_t rv;
struct partition *boot;
struct hp300_lifdir *lifdir;
int offset;
int i;
unsigned int secsize = HP300_SECTSIZE;
uint64_t boot_size, boot_offset;
char label_buf[DEV_BSIZE];
struct disklabel *label = (void *)label_buf;
assert(params != NULL);
assert(params->fsfd != -1);
assert(params->filesystem != NULL);
assert(params->s1fd != -1);
assert(params->stage1 != NULL);
retval = 0;
bootstrap = MAP_FAILED;
if (params->flags & IB_APPEND) {
if (!S_ISREG(params->fsstat.st_mode)) {
warnx(
"`%s' must be a regular file to append a bootstrap",
params->filesystem);
goto done;
}
boot_offset = roundup(params->fsstat.st_size, HP300_SECTSIZE);
} else {
/*
* The bootstrap can be well over 8k, and must go into a BOOT
* partition. Read NetBSD label to locate BOOT partition.
*/
if (pread(params->fsfd, label, DEV_BSIZE, 2 * DEV_BSIZE)
!= DEV_BSIZE) {
warn("reading disklabel");
goto done;
}
/* And a quick validation - must be a big-endian label */
secsize = be32toh(label->d_secsize);
if (label->d_magic != htobe32(DISKMAGIC) ||
label->d_magic2 != htobe32(DISKMAGIC) ||
secsize == 0 || secsize & (secsize - 1) ||
be16toh(label->d_npartitions) > MAXMAXPARTITIONS) {
warnx("Invalid disklabel in %s", params->filesystem);
goto done;
}
i = be16toh(label->d_npartitions);
for (boot = label->d_partitions; ; boot++) {
if (--i < 0) {
warnx("No BOOT partition");
goto done;
}
if (boot->p_fstype == FS_BOOT)
break;
}
boot_size = be32toh(boot->p_size) * (uint64_t)secsize;
boot_offset = be32toh(boot->p_offset) * (uint64_t)secsize;
/*
* We put the entire LIF file into the BOOT partition even when
* it doesn't start at the beginning of the disk.
*
* Maybe we ought to be able to take a binary file and add
* it to the LIF filesystem.
*/
if (boot_size < params->s1stat.st_size) {
warn("BOOT partition too small (%llu < %llu)",
(unsigned long long)boot_size,
(unsigned long long)params->s1stat.st_size);
goto done;
}
}
bootstrap = mmap(NULL, params->s1stat.st_size, PROT_READ | PROT_WRITE,
MAP_PRIVATE, params->s1fd, 0);
if (bootstrap == MAP_FAILED) {
warn("mmaping `%s'", params->stage1);
goto done;
}
/* Relocate files, sanity check LIF directory on the way */
lifdir = (void *)(bootstrap + HP300_SECTSIZE * 2);
for (i = 0; i < 8; lifdir++, i++) {
int addr = be32toh(lifdir->dir_addr);
int limit = (params->s1stat.st_size - 1) / HP300_SECTSIZE + 1;
if (addr + be32toh(lifdir->dir_length) > limit) {
warnx("LIF entry %d larger (%d %d) than LIF file",
i, addr + be32toh(lifdir->dir_length), limit);
goto done;
}
if (addr != 0 && boot_offset != 0)
lifdir->dir_addr = htobe32(addr + boot_offset
/ HP300_SECTSIZE);
}
if (params->flags & IB_NOWRITE) {
retval = 1;
goto done;
}
/* Write LIF volume header and directory to sectors 0 and 1 */
rv = pwrite(params->fsfd, bootstrap, 1024, 0);
if (rv != 1024) {
if (rv == -1)
warn("Writing `%s'", params->filesystem);
else
warnx("Writing `%s': short write", params->filesystem);
goto done;
}
/* Write files to BOOT partition */
offset = boot_offset <= HP300_SECTSIZE * 16 ? HP300_SECTSIZE * 16 : 0;
i = roundup(params->s1stat.st_size, secsize) - offset;
rv = pwrite(params->fsfd, bootstrap + offset, i, boot_offset + offset);
if (rv != i) {
if (rv == -1)
warn("Writing boot filesystem of `%s'",
params->filesystem);
else
warnx("Writing boot filesystem of `%s': short write",
params->filesystem);
goto done;
}
retval = 1;
done:
if (bootstrap != MAP_FAILED)
munmap(bootstrap, params->s1stat.st_size);
return retval;
}