1 /* $NetBSD: sparc64.c,v 1.19 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 of Wasabi Systems.
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 /*
33 * Copyright (c) 2002 Matthew R. Green
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 *
45 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
46 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
47 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
48 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
49 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
50 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
51 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
52 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
53 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
54 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * SUCH DAMAGE.
56 */
57
58 #if HAVE_NBTOOL_CONFIG_H
59 #include "nbtool_config.h"
60 #endif
61
62 #include <sys/cdefs.h>
63 #if !defined(__lint)
64 __RCSID("$NetBSD: sparc64.c,v 1.19 2019/05/07 04:35:31 thorpej Exp $");
65 #endif /* !__lint */
66
67 #include <sys/param.h>
68
69 #include <assert.h>
70 #include <err.h>
71 #include <stddef.h>
72 #include <stdio.h>
73 #include <stdlib.h>
74 #include <string.h>
75 #include <unistd.h>
76
77 #include "installboot.h"
78
79 static int sparc64_clearboot(ib_params *);
80 static int sparc64_setboot(ib_params *);
81
82 struct ib_mach ib_mach_sparc64 = {
83 .name = "sparc64",
84 .setboot = sparc64_setboot,
85 .clearboot = sparc64_clearboot,
86 .editboot = no_editboot,
87 };
88
89 static int
sparc64_clearboot(ib_params * params)90 sparc64_clearboot(ib_params *params)
91 {
92 char bb[SPARC64_BOOT_BLOCK_MAX_SIZE];
93 ssize_t rv;
94
95 assert(params != NULL);
96 assert(params->fsfd != -1);
97 assert(params->filesystem != NULL);
98
99 if (params->flags & (IB_STAGE1START | IB_STAGE2START)) {
100 warnx("`-b bno' and `-B bno' are not supported for %s",
101 params->machine->name);
102 return (0);
103 }
104
105 /* first check that it _could_ exist here */
106 rv = pread(params->fsfd, &bb, sizeof(bb), SPARC64_BOOT_BLOCK_OFFSET);
107 if (rv == -1) {
108 warn("Reading `%s'", params->filesystem);
109 return (0);
110 } else if (rv != sizeof(bb)) {
111 warnx("Reading `%s': short read", params->filesystem);
112 return (0);
113 }
114
115 /* now clear it out to nothing */
116 memset(&bb, 0, sizeof(bb));
117
118 if (params->flags & IB_VERBOSE)
119 printf("%slearing boot block\n",
120 (params->flags & IB_NOWRITE) ? "Not c" : "C");
121 if (params->flags & IB_NOWRITE)
122 return (1);
123
124 rv = pwrite(params->fsfd, &bb, sizeof(bb), SPARC64_BOOT_BLOCK_OFFSET);
125 if (rv == -1) {
126 warn("Writing `%s'", params->filesystem);
127 return (0);
128 } else if (rv != sizeof(bb)) {
129 warnx("Writing `%s': short write", params->filesystem);
130 return (0);
131 }
132
133 return (1);
134 }
135
136 static int
sparc64_setboot(ib_params * params)137 sparc64_setboot(ib_params *params)
138 {
139 char bb[SPARC64_BOOT_BLOCK_MAX_SIZE];
140 int retval;
141 ssize_t rv;
142
143 assert(params != NULL);
144 assert(params->fsfd != -1);
145 assert(params->filesystem != NULL);
146 assert(params->s1fd != -1);
147 assert(params->stage1 != NULL);
148
149 retval = 0;
150
151 if (params->flags & (IB_STAGE1START | IB_STAGE2START)) {
152 warnx("`-b bno' and `-B bno' are not supported for %s",
153 params->machine->name);
154 goto done;
155 }
156
157 memset(&bb, 0, SPARC64_BOOT_BLOCK_MAX_SIZE);
158 rv = read(params->s1fd, &bb, sizeof(bb));
159 if (rv == -1) {
160 warn("Reading `%s'", params->stage1);
161 goto done;
162 }
163
164 if (params->flags & IB_VERBOSE) {
165 printf("Bootstrap start sector: %u\n",
166 SPARC64_BOOT_BLOCK_OFFSET / SPARC64_BOOT_BLOCK_BLOCKSIZE);
167 printf("Bootstrap byte count: %u\n", (unsigned)rv);
168 printf("%sriting bootstrap\n",
169 (params->flags & IB_NOWRITE) ? "Not w" : "W");
170 }
171 if (params->flags & IB_NOWRITE) {
172 retval = 1;
173 goto done;
174 }
175
176 rv = pwrite(params->fsfd, &bb, SPARC64_BOOT_BLOCK_MAX_SIZE,
177 SPARC64_BOOT_BLOCK_OFFSET);
178 if (rv == -1) {
179 warn("Writing `%s'", params->filesystem);
180 goto done;
181 } else if (rv != SPARC64_BOOT_BLOCK_MAX_SIZE) {
182 warnx("Writing `%s': short write", params->filesystem);
183 goto done;
184 } else
185 retval = 1;
186
187 done:
188 return (retval);
189 }
190