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 ||
48 strcmp(platform, "mpc85xx") == 0)
51 /* Pick GPT as a generic default */
56 is_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);
61 if (strcmp(platform, "powermac") == 0 && strcmp(part_type, "APM") == 0)
63 if (strcmp(platform, "powernv") == 0 && strcmp(part_type, "GPT") == 0)
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))
69 if (strcmp(platform, "mpc85xx") == 0 && strcmp(part_type, "MBR") == 0)
76 is_fs_bootable(const char *part_type, const char *fs)
78 if (strcmp(fs, "freebsd-ufs") == 0)
85 bootpart_size(const char *part_type)
87 size_t platlen = sizeof(platform);
88 if (strlen(platform) == 0)
89 sysctlbyname("hw.platform", platform, &platlen, NULL, -1);
91 if (strcmp(part_type, "APM") == 0)
93 if (strcmp(part_type, "BSD") == 0) /* Nothing for nested */
95 if (strcmp(platform, "chrp") == 0)
97 if (strcmp(platform, "ps3") == 0 || strcmp(platform, "powernv") == 0 ||
98 strcmp(platform, "mpc85xx") == 0)
99 return (512*1024*1024);
104 bootpart_type(const char *scheme, const char **mountpoint)
106 size_t platlen = sizeof(platform);
107 if (strlen(platform) == 0)
108 sysctlbyname("hw.platform", platform, &platlen, NULL, -1);
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)
123 return ("freebsd-boot");
127 bootcode_path(const char *part_type) {
132 partcode_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);
137 if (strcmp(part_type, "APM") == 0)
138 return ("/boot/boot1.hfs");
139 if (strcmp(platform, "chrp") == 0)
140 return ("/boot/boot1.elf");