166 lines
4.3 KiB
C
166 lines
4.3 KiB
C
/* $NetBSD: news.c,v 1.7 2008/04/28 20:24:16 martin 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 and Izumi Tsutsui.
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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: news.c,v 1.7 2008/04/28 20:24:16 martin Exp $");
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#endif /* !__lint */
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#include <sys/param.h>
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#include <assert.h>
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#include <err.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.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 int news_copydisklabel(ib_params *, struct bbinfo_params *, uint8_t *);
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static int news68k_clearboot(ib_params *);
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static int news68k_setboot(ib_params *);
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static int newsmips_clearboot(ib_params *);
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static int newsmips_setboot(ib_params *);
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struct ib_mach ib_mach_news68k =
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{ "news68k", news68k_setboot, news68k_clearboot, no_editboot,
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IB_STAGE2START };
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struct ib_mach ib_mach_newsmips =
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{ "newsmips", newsmips_setboot, newsmips_clearboot, no_editboot,
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IB_STAGE2START };
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/*
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* news68k specific support
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*/
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static struct bbinfo_params news68k_bbparams = {
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NEWS68K_BBINFO_MAGIC,
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NEWS_BOOT_BLOCK_OFFSET, /* write all 8K (including disklabel) */
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NEWS_BOOT_BLOCK_BLOCKSIZE,
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NEWS_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
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news68k_clearboot(ib_params *params)
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{
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assert(params != NULL);
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return (shared_bbinfo_clearboot(params, &news68k_bbparams,
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news_copydisklabel));
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}
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static int
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news68k_setboot(ib_params *params)
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{
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assert(params != NULL);
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return (shared_bbinfo_setboot(params, &news68k_bbparams,
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news_copydisklabel));
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}
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/*
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* newsmips specific support
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*/
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static struct bbinfo_params newsmips_bbparams = {
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NEWSMIPS_BBINFO_MAGIC,
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NEWS_BOOT_BLOCK_OFFSET, /* write all 8K (including disklabel) */
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NEWS_BOOT_BLOCK_BLOCKSIZE,
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NEWS_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
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newsmips_clearboot(ib_params *params)
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{
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assert(params != NULL);
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return (shared_bbinfo_clearboot(params, &newsmips_bbparams,
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news_copydisklabel));
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}
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static int
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newsmips_setboot(ib_params *params)
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{
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assert(params != NULL);
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return (shared_bbinfo_setboot(params, &newsmips_bbparams,
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news_copydisklabel));
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}
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/*
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* news_copydisklabel --
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* copy disklabel from existing location on disk into bootstrap,
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* as the primary bootstrap contains the disklabel.
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*/
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static int
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news_copydisklabel(ib_params *params, struct bbinfo_params *bbparams,
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uint8_t *bb)
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{
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uint8_t boot00[NEWS_BOOT_BLOCK_BLOCKSIZE];
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ssize_t rv;
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assert(params != NULL);
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assert(params->fsfd != -1);
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assert(bbparams != NULL);
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assert(bb != NULL);
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/* Read label sector to copy disklabel from */
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memset(boot00, 0, sizeof(boot00));
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rv = pread(params->fsfd, boot00, sizeof(boot00), 0);
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if (rv == -1) {
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warn("Reading label sector from `%s'", params->filesystem);
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return (0);
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}
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/* Copy disklabel */
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memcpy(bb + NEWS_BOOT_BLOCK_LABELOFFSET,
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boot00 + NEWS_BOOT_BLOCK_LABELOFFSET,
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sizeof(boot00) - NEWS_BOOT_BLOCK_LABELOFFSET);
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return (1);
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}
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