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news.c revision 1.6 
      1 /*	$NetBSD: news.c,v 1.6 2006/02/18 10:08:07 dsl Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2002 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Luke Mewburn and Izumi Tsutsui.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the NetBSD
     21  *	Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #if HAVE_NBTOOL_CONFIG_H
     40 #include "nbtool_config.h"
     41 #endif
     42 
     43 #include <sys/cdefs.h>
     44 #if !defined(__lint)
     45 __RCSID("$NetBSD: news.c,v 1.6 2006/02/18 10:08:07 dsl Exp $");
     46 #endif	/* !__lint */
     47 
     48 #include <sys/param.h>
     49 
     50 #include <assert.h>
     51 #include <err.h>
     52 #include <stddef.h>
     53 #include <stdio.h>
     54 #include <stdlib.h>
     55 #include <string.h>
     56 #include <unistd.h>
     57 
     58 #include "installboot.h"
     59 
     60 static int news_copydisklabel(ib_params *, struct bbinfo_params *, uint8_t *);
     61 
     62 static int news68k_clearboot(ib_params *);
     63 static int news68k_setboot(ib_params *);
     64 static int newsmips_clearboot(ib_params *);
     65 static int newsmips_setboot(ib_params *);
     66 
     67 struct ib_mach ib_mach_news68k =
     68 	{ "news68k", news68k_setboot, news68k_clearboot, no_editboot,
     69 		IB_STAGE2START };
     70 
     71 struct ib_mach ib_mach_newsmips =
     72 	{ "newsmips", newsmips_setboot, newsmips_clearboot, no_editboot,
     73 		IB_STAGE2START };
     74 
     75 /*
     76  * news68k specific support
     77  */
     78 
     79 static struct bbinfo_params news68k_bbparams = {
     80 	NEWS68K_BBINFO_MAGIC,
     81 	NEWS_BOOT_BLOCK_OFFSET,		/* write all 8K (including disklabel) */
     82 	NEWS_BOOT_BLOCK_BLOCKSIZE,
     83 	NEWS_BOOT_BLOCK_MAX_SIZE,
     84 	0,
     85 	BBINFO_BIG_ENDIAN,
     86 };
     87 
     88 static int
     89 news68k_clearboot(ib_params *params)
     90 {
     91 
     92 	assert(params != NULL);
     93 
     94 	return (shared_bbinfo_clearboot(params, &news68k_bbparams,
     95 	    news_copydisklabel));
     96 }
     97 
     98 static int
     99 news68k_setboot(ib_params *params)
    100 {
    101 
    102 	assert(params != NULL);
    103 
    104 	return (shared_bbinfo_setboot(params, &news68k_bbparams,
    105 	    news_copydisklabel));
    106 }
    107 
    108 
    109 /*
    110  * newsmips specific support
    111  */
    112 
    113 static struct bbinfo_params newsmips_bbparams = {
    114 	NEWSMIPS_BBINFO_MAGIC,
    115 	NEWS_BOOT_BLOCK_OFFSET,		/* write all 8K (including disklabel) */
    116 	NEWS_BOOT_BLOCK_BLOCKSIZE,
    117 	NEWS_BOOT_BLOCK_MAX_SIZE,
    118 	0,
    119 	BBINFO_BIG_ENDIAN,
    120 };
    121 
    122 static int
    123 newsmips_clearboot(ib_params *params)
    124 {
    125 
    126 	assert(params != NULL);
    127 
    128 	return (shared_bbinfo_clearboot(params, &newsmips_bbparams,
    129 	    news_copydisklabel));
    130 }
    131 
    132 static int
    133 newsmips_setboot(ib_params *params)
    134 {
    135 
    136 	assert(params != NULL);
    137 
    138 	return (shared_bbinfo_setboot(params, &newsmips_bbparams,
    139 	    news_copydisklabel));
    140 }
    141 
    142 
    143 /*
    144  * news_copydisklabel --
    145  *	copy disklabel from existing location on disk into bootstrap,
    146  *	as the primary bootstrap contains the disklabel.
    147  */
    148 static int
    149 news_copydisklabel(ib_params *params, struct bbinfo_params *bbparams,
    150 	uint8_t *bb)
    151 {
    152 	uint8_t	boot00[NEWS_BOOT_BLOCK_BLOCKSIZE];
    153 	ssize_t	rv;
    154 
    155 	assert(params != NULL);
    156 	assert(params->fsfd != -1);
    157 	assert(bbparams != NULL);
    158 	assert(bb != NULL);
    159 
    160 		/* Read label sector to copy disklabel from */
    161 	memset(boot00, 0, sizeof(boot00));
    162 	rv = pread(params->fsfd, boot00, sizeof(boot00), 0);
    163 	if (rv == -1) {
    164 		warn("Reading label sector from `%s'", params->filesystem);
    165 		return (0);
    166 	}
    167 		/* Copy disklabel */
    168 	memcpy(bb + NEWS_BOOT_BLOCK_LABELOFFSET,
    169 	    boot00 + NEWS_BOOT_BLOCK_LABELOFFSET,
    170 	    sizeof(boot00) - NEWS_BOOT_BLOCK_LABELOFFSET);
    171 
    172 	return (1);
    173 }
    174