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news.c revision 1.5 
      1 /*	$NetBSD: news.c,v 1.5 2003/10/27 00:12:44 lukem 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 1.5 2003/10/27 00:12:44 lukem 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 
     63 /*
     64  * news68k specific support
     65  */
     66 
     67 static struct bbinfo_params news68k_bbparams = {
     68 	NEWS68K_BBINFO_MAGIC,
     69 	NEWS_BOOT_BLOCK_OFFSET,		/* write all 8K (including disklabel) */
     70 	NEWS_BOOT_BLOCK_BLOCKSIZE,
     71 	NEWS_BOOT_BLOCK_MAX_SIZE,
     72 	0,
     73 	BBINFO_BIG_ENDIAN,
     74 };
     75 
     76 int
     77 news68k_clearboot(ib_params *params)
     78 {
     79 
     80 	assert(params != NULL);
     81 
     82 	return (shared_bbinfo_clearboot(params, &news68k_bbparams,
     83 	    news_copydisklabel));
     84 }
     85 
     86 int
     87 news68k_setboot(ib_params *params)
     88 {
     89 
     90 	assert(params != NULL);
     91 
     92 	return (shared_bbinfo_setboot(params, &news68k_bbparams,
     93 	    news_copydisklabel));
     94 }
     95 
     96 
     97 /*
     98  * newsmips specific support
     99  */
    100 
    101 static struct bbinfo_params newsmips_bbparams = {
    102 	NEWSMIPS_BBINFO_MAGIC,
    103 	NEWS_BOOT_BLOCK_OFFSET,		/* write all 8K (including disklabel) */
    104 	NEWS_BOOT_BLOCK_BLOCKSIZE,
    105 	NEWS_BOOT_BLOCK_MAX_SIZE,
    106 	0,
    107 	BBINFO_BIG_ENDIAN,
    108 };
    109 
    110 int
    111 newsmips_clearboot(ib_params *params)
    112 {
    113 
    114 	assert(params != NULL);
    115 
    116 	return (shared_bbinfo_clearboot(params, &newsmips_bbparams,
    117 	    news_copydisklabel));
    118 }
    119 
    120 int
    121 newsmips_setboot(ib_params *params)
    122 {
    123 
    124 	assert(params != NULL);
    125 
    126 	return (shared_bbinfo_setboot(params, &newsmips_bbparams,
    127 	    news_copydisklabel));
    128 }
    129 
    130 
    131 /*
    132  * news_copydisklabel --
    133  *	copy disklabel from existing location on disk into bootstrap,
    134  *	as the primary bootstrap contains the disklabel.
    135  */
    136 static int
    137 news_copydisklabel(ib_params *params, struct bbinfo_params *bbparams,
    138 	uint8_t *bb)
    139 {
    140 	uint8_t	boot00[NEWS_BOOT_BLOCK_BLOCKSIZE];
    141 	ssize_t	rv;
    142 
    143 	assert(params != NULL);
    144 	assert(params->fsfd != -1);
    145 	assert(bbparams != NULL);
    146 	assert(bb != NULL);
    147 
    148 		/* Read label sector to copy disklabel from */
    149 	memset(boot00, 0, sizeof(boot00));
    150 	rv = pread(params->fsfd, boot00, sizeof(boot00), 0);
    151 	if (rv == -1) {
    152 		warn("Reading label sector from `%s'", params->filesystem);
    153 		return (0);
    154 	}
    155 		/* Copy disklabel */
    156 	memcpy(bb + NEWS_BOOT_BLOCK_LABELOFFSET,
    157 	    boot00 + NEWS_BOOT_BLOCK_LABELOFFSET,
    158 	    sizeof(boot00) - NEWS_BOOT_BLOCK_LABELOFFSET);
    159 
    160 	return (1);
    161 }
    162