1/*	$NetBSD: news.c,v 1.8 2019/05/07 04:35:31 thorpej 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 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#if HAVE_NBTOOL_CONFIG_H
33#include "nbtool_config.h"
34#endif
35
36#include <sys/cdefs.h>
37#if !defined(__lint)
38__RCSID("$NetBSD: news.c,v 1.8 2019/05/07 04:35:31 thorpej Exp $");
39#endif	/* !__lint */
40
41#include <sys/param.h>
42
43#include <assert.h>
44#include <err.h>
45#include <stddef.h>
46#include <stdio.h>
47#include <stdlib.h>
48#include <string.h>
49#include <unistd.h>
50
51#include "installboot.h"
52
53static int news_copydisklabel(ib_params *, struct bbinfo_params *, uint8_t *);
54
55static int news68k_clearboot(ib_params *);
56static int news68k_setboot(ib_params *);
57static int newsmips_clearboot(ib_params *);
58static int newsmips_setboot(ib_params *);
59
60struct ib_mach ib_mach_news68k = {
61	.name		=	"news68k",
62	.setboot	=	news68k_setboot,
63	.clearboot	=	news68k_clearboot,
64	.editboot	=	no_editboot,
65	.valid_flags	=	IB_STAGE2START,
66};
67
68struct ib_mach ib_mach_newsmips = {
69	.name		=	"newsmips",
70	.setboot	=	newsmips_setboot,
71	.clearboot	=	newsmips_clearboot,
72	.editboot	=	no_editboot,
73	.valid_flags	=	IB_STAGE2START,
74};
75
76/*
77 * news68k specific support
78 */
79
80static struct bbinfo_params news68k_bbparams = {
81	NEWS68K_BBINFO_MAGIC,
82	NEWS_BOOT_BLOCK_OFFSET,		/* write all 8K (including disklabel) */
83	NEWS_BOOT_BLOCK_BLOCKSIZE,
84	NEWS_BOOT_BLOCK_MAX_SIZE,
85	0,
86	BBINFO_BIG_ENDIAN,
87};
88
89static int
90news68k_clearboot(ib_params *params)
91{
92
93	assert(params != NULL);
94
95	return (shared_bbinfo_clearboot(params, &news68k_bbparams,
96	    news_copydisklabel));
97}
98
99static int
100news68k_setboot(ib_params *params)
101{
102
103	assert(params != NULL);
104
105	return (shared_bbinfo_setboot(params, &news68k_bbparams,
106	    news_copydisklabel));
107}
108
109
110/*
111 * newsmips specific support
112 */
113
114static struct bbinfo_params newsmips_bbparams = {
115	NEWSMIPS_BBINFO_MAGIC,
116	NEWS_BOOT_BLOCK_OFFSET,		/* write all 8K (including disklabel) */
117	NEWS_BOOT_BLOCK_BLOCKSIZE,
118	NEWS_BOOT_BLOCK_MAX_SIZE,
119	0,
120	BBINFO_BIG_ENDIAN,
121};
122
123static int
124newsmips_clearboot(ib_params *params)
125{
126
127	assert(params != NULL);
128
129	return (shared_bbinfo_clearboot(params, &newsmips_bbparams,
130	    news_copydisklabel));
131}
132
133static int
134newsmips_setboot(ib_params *params)
135{
136
137	assert(params != NULL);
138
139	return (shared_bbinfo_setboot(params, &newsmips_bbparams,
140	    news_copydisklabel));
141}
142
143
144/*
145 * news_copydisklabel --
146 *	copy disklabel from existing location on disk into bootstrap,
147 *	as the primary bootstrap contains the disklabel.
148 */
149static int
150news_copydisklabel(ib_params *params, struct bbinfo_params *bbparams,
151	uint8_t *bb)
152{
153	uint8_t	boot00[NEWS_BOOT_BLOCK_BLOCKSIZE];
154	ssize_t	rv;
155
156	assert(params != NULL);
157	assert(params->fsfd != -1);
158	assert(bbparams != NULL);
159	assert(bb != NULL);
160
161		/* Read label sector to copy disklabel from */
162	memset(boot00, 0, sizeof(boot00));
163	rv = pread(params->fsfd, boot00, sizeof(boot00), 0);
164	if (rv == -1) {
165		warn("Reading label sector from `%s'", params->filesystem);
166		return (0);
167	}
168		/* Copy disklabel */
169	memcpy(bb + NEWS_BOOT_BLOCK_LABELOFFSET,
170	    boot00 + NEWS_BOOT_BLOCK_LABELOFFSET,
171	    sizeof(boot00) - NEWS_BOOT_BLOCK_LABELOFFSET);
172
173	return (1);
174}
175