1 /* $NetBSD: news.c,v 1.7 2008/04/28 20:24:16 martin 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 1.7 2008/04/28 20:24:16 martin 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
53 static int news_copydisklabel(ib_params *, struct bbinfo_params *, uint8_t *);
54
55 static int news68k_clearboot(ib_params *);
56 static int news68k_setboot(ib_params *);
57 static int newsmips_clearboot(ib_params *);
58 static int newsmips_setboot(ib_params *);
59
60 struct ib_mach ib_mach_news68k =
61 { "news68k", news68k_setboot, news68k_clearboot, no_editboot,
62 IB_STAGE2START };
63
64 struct ib_mach ib_mach_newsmips =
65 { "newsmips", newsmips_setboot, newsmips_clearboot, no_editboot,
66 IB_STAGE2START };
67
68 /*
69 * news68k specific support
70 */
71
72 static struct bbinfo_params news68k_bbparams = {
73 NEWS68K_BBINFO_MAGIC,
74 NEWS_BOOT_BLOCK_OFFSET, /* write all 8K (including disklabel) */
75 NEWS_BOOT_BLOCK_BLOCKSIZE,
76 NEWS_BOOT_BLOCK_MAX_SIZE,
77 0,
78 BBINFO_BIG_ENDIAN,
79 };
80
81 static int
news68k_clearboot(ib_params * params)82 news68k_clearboot(ib_params *params)
83 {
84
85 assert(params != NULL);
86
87 return (shared_bbinfo_clearboot(params, &news68k_bbparams,
88 news_copydisklabel));
89 }
90
91 static int
news68k_setboot(ib_params * params)92 news68k_setboot(ib_params *params)
93 {
94
95 assert(params != NULL);
96
97 return (shared_bbinfo_setboot(params, &news68k_bbparams,
98 news_copydisklabel));
99 }
100
101
102 /*
103 * newsmips specific support
104 */
105
106 static struct bbinfo_params newsmips_bbparams = {
107 NEWSMIPS_BBINFO_MAGIC,
108 NEWS_BOOT_BLOCK_OFFSET, /* write all 8K (including disklabel) */
109 NEWS_BOOT_BLOCK_BLOCKSIZE,
110 NEWS_BOOT_BLOCK_MAX_SIZE,
111 0,
112 BBINFO_BIG_ENDIAN,
113 };
114
115 static int
newsmips_clearboot(ib_params * params)116 newsmips_clearboot(ib_params *params)
117 {
118
119 assert(params != NULL);
120
121 return (shared_bbinfo_clearboot(params, &newsmips_bbparams,
122 news_copydisklabel));
123 }
124
125 static int
newsmips_setboot(ib_params * params)126 newsmips_setboot(ib_params *params)
127 {
128
129 assert(params != NULL);
130
131 return (shared_bbinfo_setboot(params, &newsmips_bbparams,
132 news_copydisklabel));
133 }
134
135
136 /*
137 * news_copydisklabel --
138 * copy disklabel from existing location on disk into bootstrap,
139 * as the primary bootstrap contains the disklabel.
140 */
141 static int
news_copydisklabel(ib_params * params,struct bbinfo_params * bbparams,uint8_t * bb)142 news_copydisklabel(ib_params *params, struct bbinfo_params *bbparams,
143 uint8_t *bb)
144 {
145 uint8_t boot00[NEWS_BOOT_BLOCK_BLOCKSIZE];
146 ssize_t rv;
147
148 assert(params != NULL);
149 assert(params->fsfd != -1);
150 assert(bbparams != NULL);
151 assert(bb != NULL);
152
153 /* Read label sector to copy disklabel from */
154 memset(boot00, 0, sizeof(boot00));
155 rv = pread(params->fsfd, boot00, sizeof(boot00), 0);
156 if (rv == -1) {
157 warn("Reading label sector from `%s'", params->filesystem);
158 return (0);
159 }
160 /* Copy disklabel */
161 memcpy(bb + NEWS_BOOT_BLOCK_LABELOFFSET,
162 boot00 + NEWS_BOOT_BLOCK_LABELOFFSET,
163 sizeof(boot00) - NEWS_BOOT_BLOCK_LABELOFFSET);
164
165 return (1);
166 }
167