2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2011 Nathan Whitehorn
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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
31 #include <sys/types.h>
32 #include <sys/sysctl.h>
37 static char platform[255] = "";
40 default_scheme(void) {
41 size_t platlen = sizeof(platform);
42 if (strlen(platform) == 0)
43 sysctlbyname("hw.platform", platform, &platlen, NULL, -1);
45 if (strcmp(platform, "powermac") == 0)
47 if (strcmp(platform, "chrp") == 0 || strcmp(platform, "ps3") == 0)
50 /* Pick GPT as a generic default */
55 is_scheme_bootable(const char *part_type) {
56 size_t platlen = sizeof(platform);
57 if (strlen(platform) == 0)
58 sysctlbyname("hw.platform", platform, &platlen, NULL, -1);
60 if (strcmp(platform, "powermac") == 0 && strcmp(part_type, "APM") == 0)
62 if (strcmp(platform, "powernv") == 0 && strcmp(part_type, "GPT") == 0)
64 if ((strcmp(platform, "chrp") == 0 || strcmp(platform, "ps3") == 0) &&
65 (strcmp(part_type, "MBR") == 0 || strcmp(part_type, "BSD") == 0 ||
66 strcmp(part_type, "GPT") == 0))
73 is_fs_bootable(const char *part_type, const char *fs)
75 if (strcmp(fs, "freebsd-ufs") == 0)
82 bootpart_size(const char *part_type)
84 size_t platlen = sizeof(platform);
85 if (strlen(platform) == 0)
86 sysctlbyname("hw.platform", platform, &platlen, NULL, -1);
88 if (strcmp(part_type, "APM") == 0)
90 if (strcmp(part_type, "BSD") == 0) /* Nothing for nested */
92 if (strcmp(platform, "chrp") == 0)
94 if (strcmp(platform, "ps3") == 0 || strcmp(platform, "powernv") == 0)
95 return (512*1024*1024);
100 bootpart_type(const char *scheme, const char **mountpoint)
102 size_t platlen = sizeof(platform);
103 if (strlen(platform) == 0)
104 sysctlbyname("hw.platform", platform, &platlen, NULL, -1);
106 if (strcmp(platform, "chrp") == 0)
107 return ("prep-boot");
108 if (strcmp(platform, "powermac") == 0)
109 return ("apple-boot");
110 if (strcmp(platform, "powernv") == 0 || strcmp(platform, "ps3") == 0) {
111 *mountpoint = "/boot";
112 if (strcmp(scheme, "GPT") == 0)
113 return ("ms-basic-data");
114 else if (strcmp(scheme, "MBR") == 0)
118 return ("freebsd-boot");
122 bootcode_path(const char *part_type) {
127 partcode_path(const char *part_type, const char *fs_type) {
128 size_t platlen = sizeof(platform);
129 if (strlen(platform) == 0)
130 sysctlbyname("hw.platform", platform, &platlen, NULL, -1);
132 if (strcmp(part_type, "APM") == 0)
133 return ("/boot/boot1.hfs");
134 if (strcmp(platform, "chrp") == 0)
135 return ("/boot/boot1.elf");