1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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 29 #include <sys/types.h> 30 #include <sys/sysctl.h> 31 #include <string.h> 32 33 #include "partedit.h" 34 35 static char platform[255] = ""; 36 37 const char * 38 default_scheme(void) { 39 size_t platlen = sizeof(platform); 40 if (strlen(platform) == 0) 41 sysctlbyname("hw.platform", platform, &platlen, NULL, -1); 42 43 if (strcmp(platform, "powermac") == 0) 44 return ("APM"); 45 if (strcmp(platform, "chrp") == 0 || strcmp(platform, "ps3") == 0 || 46 strcmp(platform, "mpc85xx") == 0) 47 return ("MBR"); 48 49 /* Pick GPT as a generic default */ 50 return ("GPT"); 51 } 52 53 int 54 is_scheme_bootable(const char *part_type) { 55 size_t platlen = sizeof(platform); 56 if (strlen(platform) == 0) 57 sysctlbyname("hw.platform", platform, &platlen, NULL, -1); 58 59 if (strcmp(platform, "powermac") == 0 && strcmp(part_type, "APM") == 0) 60 return (1); 61 if (strcmp(platform, "powernv") == 0 && strcmp(part_type, "GPT") == 0) 62 return (1); 63 if ((strcmp(platform, "chrp") == 0 || strcmp(platform, "ps3") == 0) && 64 (strcmp(part_type, "MBR") == 0 || strcmp(part_type, "BSD") == 0 || 65 strcmp(part_type, "GPT") == 0)) 66 return (1); 67 if (strcmp(platform, "mpc85xx") == 0 && strcmp(part_type, "MBR") == 0) 68 return (1); 69 70 return (0); 71 } 72 73 int 74 is_fs_bootable(const char *part_type, const char *fs) 75 { 76 if (strcmp(fs, "freebsd-ufs") == 0) 77 return (1); 78 79 return (0); 80 } 81 82 size_t 83 bootpart_size(const char *part_type) 84 { 85 size_t platlen = sizeof(platform); 86 if (strlen(platform) == 0) 87 sysctlbyname("hw.platform", platform, &platlen, NULL, -1); 88 89 if (strcmp(part_type, "APM") == 0) 90 return (800*1024); 91 if (strcmp(part_type, "BSD") == 0) /* Nothing for nested */ 92 return (0); 93 if (strcmp(platform, "chrp") == 0) 94 return (800*1024); 95 if (strcmp(platform, "ps3") == 0 || strcmp(platform, "powernv") == 0) 96 return (512*1024*1024); 97 if (strcmp(platform, "mpc85xx") == 0) 98 return (16*1024*1024); 99 return (0); 100 } 101 102 const char * 103 bootpart_type(const char *scheme, const char **mountpoint) 104 { 105 size_t platlen = sizeof(platform); 106 if (strlen(platform) == 0) 107 sysctlbyname("hw.platform", platform, &platlen, NULL, -1); 108 109 if (strcmp(platform, "chrp") == 0) 110 return ("prep-boot"); 111 if (strcmp(platform, "powermac") == 0) 112 return ("apple-boot"); 113 if (strcmp(platform, "powernv") == 0 || strcmp(platform, "ps3") == 0) { 114 *mountpoint = "/boot"; 115 if (strcmp(scheme, "GPT") == 0) 116 return ("ms-basic-data"); 117 else if (strcmp(scheme, "MBR") == 0) 118 return ("fat32"); 119 } 120 if (strcmp(platform, "mpc85xx") == 0) { 121 *mountpoint = "/boot/uboot"; 122 return ("fat16"); 123 } 124 125 return ("freebsd-boot"); 126 } 127 128 const char * 129 bootcode_path(const char *part_type) { 130 return (NULL); 131 } 132 133 const char * 134 partcode_path(const char *part_type, const char *fs_type) { 135 size_t platlen = sizeof(platform); 136 if (strlen(platform) == 0) 137 sysctlbyname("hw.platform", platform, &platlen, NULL, -1); 138 139 if (strcmp(part_type, "APM") == 0) 140 return ("/boot/boot1.hfs"); 141 if (strcmp(platform, "chrp") == 0) 142 return ("/boot/boot1.elf"); 143 return (NULL); 144 } 145 146