187 lines
5.5 KiB
C
187 lines
5.5 KiB
C
/* $NetBSD: macppc.c,v 1.11 2008/05/24 19:15:21 tsutsui Exp $ */
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/*-
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* Copyright (c) 2002 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Luke Mewburn.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#if HAVE_NBTOOL_CONFIG_H
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#include "nbtool_config.h"
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#endif
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#include <sys/cdefs.h>
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#if !defined(__lint)
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__RCSID("$NetBSD: macppc.c,v 1.11 2008/05/24 19:15:21 tsutsui Exp $");
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#endif /* !__lint */
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#include <sys/param.h>
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#ifndef HAVE_NBTOOL_CONFIG_H
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#include <sys/ioctl.h>
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#include <sys/dkio.h>
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#include <errno.h>
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#endif
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#include <assert.h>
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#include <err.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include "installboot.h"
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static struct bbinfo_params bbparams = {
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MACPPC_BBINFO_MAGIC,
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MACPPC_BOOT_BLOCK_OFFSET,
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MACPPC_BOOT_BLOCK_BLOCKSIZE,
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MACPPC_BOOT_BLOCK_MAX_SIZE,
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0,
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BBINFO_BIG_ENDIAN,
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};
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static int writeapplepartmap(ib_params *, struct bbinfo_params *, uint8_t *);
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static int macppc_clearboot(ib_params *);
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static int macppc_setboot(ib_params *);
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struct ib_mach ib_mach_macppc =
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{ "macppc", macppc_setboot, macppc_clearboot, no_editboot,
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IB_STAGE2START };
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static int
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macppc_clearboot(ib_params *params)
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{
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assert(params != NULL);
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/* XXX: maybe clear the apple partition map too? */
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return (shared_bbinfo_clearboot(params, &bbparams, NULL));
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}
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static int
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macppc_setboot(ib_params *params)
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{
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assert(params != NULL);
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return (shared_bbinfo_setboot(params, &bbparams, writeapplepartmap));
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}
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static int
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writeapplepartmap(ib_params *params, struct bbinfo_params *bb_params,
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uint8_t *bb)
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{
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struct apple_drvr_map dm;
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struct apple_part_map_entry pme;
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int rv;
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assert (params != NULL);
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assert (bb_params != NULL);
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assert (bb != NULL);
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if (params->flags & IB_NOWRITE)
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return (1);
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/* block 0: driver map */
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if (pread(params->fsfd, &dm, MACPPC_BOOT_BLOCK_BLOCKSIZE, 0) !=
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MACPPC_BOOT_BLOCK_BLOCKSIZE) {
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warn("Can't read sector 0 of `%s'", params->filesystem);
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return (0);
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}
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dm.sbSig = htobe16(APPLE_DRVR_MAP_MAGIC);
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dm.sbBlockSize = htobe16(512);
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dm.sbBlkCount = htobe32(0);
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rv = pwrite(params->fsfd, &dm, MACPPC_BOOT_BLOCK_BLOCKSIZE, 0);
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#ifdef DIOCWLABEL
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if (rv == -1 && errno == EROFS) {
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/*
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* block 0 is LABELSECTOR which might be protected by
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* bounds_check_with_label(9).
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*/
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int enable;
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enable = 1;
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rv = ioctl(params->fsfd, DIOCWLABEL, &enable);
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if (rv != 0) {
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warn("Cannot enable writes to the label sector");
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return 0;
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}
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rv = pwrite(params->fsfd, &dm, MACPPC_BOOT_BLOCK_BLOCKSIZE, 0);
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/* Reset write-protect. */
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enable = 0;
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(void)ioctl(params->fsfd, DIOCWLABEL, &enable);
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}
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#endif
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if (rv != MACPPC_BOOT_BLOCK_BLOCKSIZE) {
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warn("Can't write sector 0 of `%s'", params->filesystem);
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return (0);
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}
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/* block 1: Apple Partition Map */
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memset(&pme, 0, sizeof(pme));
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pme.pmSig = htobe16(APPLE_PART_MAP_ENTRY_MAGIC);
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pme.pmMapBlkCnt = htobe32(2);
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pme.pmPyPartStart = htobe32(1);
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pme.pmPartBlkCnt = htobe32(2);
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pme.pmDataCnt = htobe32(2);
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strlcpy(pme.pmPartName, "Apple", sizeof(pme.pmPartName));
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strlcpy(pme.pmPartType, "Apple_partition_map", sizeof(pme.pmPartType));
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pme.pmPartStatus = htobe32(0x37);
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if (pwrite(params->fsfd, &pme, MACPPC_BOOT_BLOCK_BLOCKSIZE,
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1 * MACPPC_BOOT_BLOCK_BLOCKSIZE) != MACPPC_BOOT_BLOCK_BLOCKSIZE) {
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warn("Can't write Apple Partition Map into sector 1 of `%s'",
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params->filesystem);
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return (0);
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}
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/* block 2: NetBSD partition */
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memset(&pme, 0, sizeof(pme));
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pme.pmSig = htobe16(APPLE_PART_MAP_ENTRY_MAGIC);
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pme.pmMapBlkCnt = htobe32(2);
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pme.pmPyPartStart = htobe32(4);
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pme.pmPartBlkCnt = htobe32(0x7fffffff);
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pme.pmDataCnt = htobe32(0x7fffffff);
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strlcpy(pme.pmPartName, "NetBSD", sizeof(pme.pmPartName));
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strlcpy(pme.pmPartType, "NetBSD/macppc", sizeof(pme.pmPartType));
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pme.pmPartStatus = htobe32(0x3b);
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pme.pmBootSize = htobe32(roundup(params->s1stat.st_size, 512));
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pme.pmBootLoad = htobe32(0x4000);
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pme.pmBootEntry = htobe32(0x4000);
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strlcpy(pme.pmProcessor, "PowerPC", sizeof(pme.pmProcessor));
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if (pwrite(params->fsfd, &pme, MACPPC_BOOT_BLOCK_BLOCKSIZE,
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2 * MACPPC_BOOT_BLOCK_BLOCKSIZE) != MACPPC_BOOT_BLOCK_BLOCKSIZE) {
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warn("Can't write Apple Partition Map into sector 2 of `%s'",
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params->filesystem);
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return (0);
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}
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return (1);
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}
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