1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2011 Nathan Whitehorn
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 */
30
31#include <sys/types.h>
32#include <sys/sysctl.h>
33#include <string.h>
34
35#include "partedit.h"
36
37static char platform[255] = "";
38
39const char *
40default_scheme(void) {
41	size_t platlen = sizeof(platform);
42	if (strlen(platform) == 0)
43		sysctlbyname("hw.platform", platform, &platlen, NULL, -1);
44
45	if (strcmp(platform, "powermac") == 0)
46		return ("APM");
47	if (strcmp(platform, "chrp") == 0 || strcmp(platform, "ps3") == 0 ||
48	    strcmp(platform, "mpc85xx") == 0)
49		return ("MBR");
50
51	/* Pick GPT as a generic default */
52	return ("GPT");
53}
54
55int
56is_scheme_bootable(const char *part_type) {
57	size_t platlen = sizeof(platform);
58	if (strlen(platform) == 0)
59		sysctlbyname("hw.platform", platform, &platlen, NULL, -1);
60
61	if (strcmp(platform, "powermac") == 0 && strcmp(part_type, "APM") == 0)
62		return (1);
63	if (strcmp(platform, "powernv") == 0 && strcmp(part_type, "GPT") == 0)
64		return (1);
65	if ((strcmp(platform, "chrp") == 0 || strcmp(platform, "ps3") == 0) &&
66	    (strcmp(part_type, "MBR") == 0 || strcmp(part_type, "BSD") == 0 ||
67	     strcmp(part_type, "GPT") == 0))
68		return (1);
69	if (strcmp(platform, "mpc85xx") == 0 && strcmp(part_type, "MBR") == 0)
70		return (1);
71
72	return (0);
73}
74
75int
76is_fs_bootable(const char *part_type, const char *fs)
77{
78	if (strcmp(fs, "freebsd-ufs") == 0)
79		return (1);
80
81	return (0);
82}
83
84size_t
85bootpart_size(const char *part_type)
86{
87	size_t platlen = sizeof(platform);
88	if (strlen(platform) == 0)
89		sysctlbyname("hw.platform", platform, &platlen, NULL, -1);
90
91	if (strcmp(part_type, "APM") == 0)
92		return (800*1024);
93	if (strcmp(part_type, "BSD") == 0) /* Nothing for nested */
94		return (0);
95	if (strcmp(platform, "chrp") == 0)
96		return (800*1024);
97	if (strcmp(platform, "ps3") == 0 || strcmp(platform, "powernv") == 0 ||
98	    strcmp(platform, "mpc85xx") == 0)
99		return (512*1024*1024);
100	return (0);
101}
102
103const char *
104bootpart_type(const char *scheme, const char **mountpoint)
105{
106	size_t platlen = sizeof(platform);
107	if (strlen(platform) == 0)
108		sysctlbyname("hw.platform", platform, &platlen, NULL, -1);
109
110	if (strcmp(platform, "chrp") == 0)
111		return ("prep-boot");
112	if (strcmp(platform, "powermac") == 0)
113		return ("apple-boot");
114	if (strcmp(platform, "powernv") == 0 || strcmp(platform, "ps3") == 0 ||
115	    strcmp(platform, "mpc85xx") == 0) {
116		*mountpoint = "/boot";
117		if (strcmp(scheme, "GPT") == 0)
118			return ("ms-basic-data");
119		else if (strcmp(scheme, "MBR") == 0)
120			return ("fat32");
121	}
122
123	return ("freebsd-boot");
124}
125
126const char *
127bootcode_path(const char *part_type) {
128	return (NULL);
129}
130
131const char *
132partcode_path(const char *part_type, const char *fs_type) {
133	size_t platlen = sizeof(platform);
134	if (strlen(platform) == 0)
135		sysctlbyname("hw.platform", platform, &platlen, NULL, -1);
136
137	if (strcmp(part_type, "APM") == 0)
138		return ("/boot/boot1.hfs");
139	if (strcmp(platform, "chrp") == 0)
140		return ("/boot/boot1.elf");
141	return (NULL);
142}
143
144