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
37 static char platform[255] = "";
38
39 const char *
default_scheme(void)40 default_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
55 int
is_scheme_bootable(const char * part_type)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);
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
75 int
is_fs_bootable(const char * part_type,const char * fs)76 is_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
84 size_t
bootpart_size(const char * part_type)85 bootpart_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
103 const char *
bootpart_type(const char * scheme,const char ** mountpoint)104 bootpart_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
126 const char *
bootcode_path(const char * part_type)127 bootcode_path(const char *part_type) {
128 return (NULL);
129 }
130
131 const char *
partcode_path(const char * part_type,const char * fs_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);
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