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 * 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 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 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 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 return (512*1024*1024); 99 if (strcmp(platform, "mpc85xx") == 0) 100 return (16*1024*1024); 101 return (0); 102 } 103 104 const char * 105 bootpart_type(const char *scheme, const char **mountpoint) 106 { 107 size_t platlen = sizeof(platform); 108 if (strlen(platform) == 0) 109 sysctlbyname("hw.platform", platform, &platlen, NULL, -1); 110 111 if (strcmp(platform, "chrp") == 0) 112 return ("prep-boot"); 113 if (strcmp(platform, "powermac") == 0) 114 return ("apple-boot"); 115 if (strcmp(platform, "powernv") == 0 || strcmp(platform, "ps3") == 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 if (strcmp(platform, "mpc85xx") == 0) { 123 *mountpoint = "/boot/uboot"; 124 return ("fat16"); 125 } 126 127 return ("freebsd-boot"); 128 } 129 130 const char * 131 bootcode_path(const char *part_type) { 132 return (NULL); 133 } 134 135 const char * 136 partcode_path(const char *part_type, const char *fs_type) { 137 size_t platlen = sizeof(platform); 138 if (strlen(platform) == 0) 139 sysctlbyname("hw.platform", platform, &platlen, NULL, -1); 140 141 if (strcmp(part_type, "APM") == 0) 142 return ("/boot/boot1.hfs"); 143 if (strcmp(platform, "chrp") == 0) 144 return ("/boot/boot1.elf"); 145 return (NULL); 146 } 147 148