1 /* $NetBSD: macppc.c,v 1.12 2019/05/07 04:35:31 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Luke Mewburn. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #if HAVE_NBTOOL_CONFIG_H 33 #include "nbtool_config.h" 34 #endif 35 36 #include <sys/cdefs.h> 37 #if !defined(__lint) 38 __RCSID("$NetBSD: macppc.c,v 1.12 2019/05/07 04:35:31 thorpej Exp $"); 39 #endif /* !__lint */ 40 41 #include <sys/param.h> 42 #ifndef HAVE_NBTOOL_CONFIG_H 43 #include <sys/ioctl.h> 44 #include <sys/dkio.h> 45 #include <errno.h> 46 #endif 47 48 #include <assert.h> 49 #include <err.h> 50 #include <stdio.h> 51 #include <string.h> 52 #include <unistd.h> 53 54 #include "installboot.h" 55 56 static struct bbinfo_params bbparams = { 57 MACPPC_BBINFO_MAGIC, 58 MACPPC_BOOT_BLOCK_OFFSET, 59 MACPPC_BOOT_BLOCK_BLOCKSIZE, 60 MACPPC_BOOT_BLOCK_MAX_SIZE, 61 0, 62 BBINFO_BIG_ENDIAN, 63 }; 64 65 static int writeapplepartmap(ib_params *, struct bbinfo_params *, uint8_t *); 66 67 static int macppc_clearboot(ib_params *); 68 static int macppc_setboot(ib_params *); 69 70 struct ib_mach ib_mach_macppc = { 71 .name = "macppc", 72 .setboot = macppc_setboot, 73 .clearboot = macppc_clearboot, 74 .editboot = no_editboot, 75 .valid_flags = IB_STAGE2START, 76 }; 77 78 static int 79 macppc_clearboot(ib_params *params) 80 { 81 82 assert(params != NULL); 83 84 /* XXX: maybe clear the apple partition map too? */ 85 return (shared_bbinfo_clearboot(params, &bbparams, NULL)); 86 } 87 88 static int 89 macppc_setboot(ib_params *params) 90 { 91 92 assert(params != NULL); 93 94 return (shared_bbinfo_setboot(params, &bbparams, writeapplepartmap)); 95 } 96 97 98 static int 99 writeapplepartmap(ib_params *params, struct bbinfo_params *bb_params, 100 uint8_t *bb) 101 { 102 struct apple_drvr_map dm; 103 struct apple_part_map_entry pme; 104 int rv; 105 106 assert (params != NULL); 107 assert (bb_params != NULL); 108 assert (bb != NULL); 109 110 if (params->flags & IB_NOWRITE) 111 return (1); 112 113 /* block 0: driver map */ 114 if (pread(params->fsfd, &dm, MACPPC_BOOT_BLOCK_BLOCKSIZE, 0) != 115 MACPPC_BOOT_BLOCK_BLOCKSIZE) { 116 warn("Can't read sector 0 of `%s'", params->filesystem); 117 return (0); 118 } 119 dm.sbSig = htobe16(APPLE_DRVR_MAP_MAGIC); 120 dm.sbBlockSize = htobe16(512); 121 dm.sbBlkCount = htobe32(0); 122 123 rv = pwrite(params->fsfd, &dm, MACPPC_BOOT_BLOCK_BLOCKSIZE, 0); 124 #ifdef DIOCWLABEL 125 if (rv == -1 && errno == EROFS) { 126 /* 127 * block 0 is LABELSECTOR which might be protected by 128 * bounds_check_with_label(9). 129 */ 130 int enable; 131 132 enable = 1; 133 rv = ioctl(params->fsfd, DIOCWLABEL, &enable); 134 if (rv != 0) { 135 warn("Cannot enable writes to the label sector"); 136 return 0; 137 } 138 139 rv = pwrite(params->fsfd, &dm, MACPPC_BOOT_BLOCK_BLOCKSIZE, 0); 140 141 /* Reset write-protect. */ 142 enable = 0; 143 (void)ioctl(params->fsfd, DIOCWLABEL, &enable); 144 } 145 #endif 146 if (rv != MACPPC_BOOT_BLOCK_BLOCKSIZE) { 147 warn("Can't write sector 0 of `%s'", params->filesystem); 148 return (0); 149 } 150 151 /* block 1: Apple Partition Map */ 152 memset(&pme, 0, sizeof(pme)); 153 pme.pmSig = htobe16(APPLE_PART_MAP_ENTRY_MAGIC); 154 pme.pmMapBlkCnt = htobe32(2); 155 pme.pmPyPartStart = htobe32(1); 156 pme.pmPartBlkCnt = htobe32(2); 157 pme.pmDataCnt = htobe32(2); 158 strlcpy(pme.pmPartName, "Apple", sizeof(pme.pmPartName)); 159 strlcpy(pme.pmPartType, "Apple_partition_map", sizeof(pme.pmPartType)); 160 pme.pmPartStatus = htobe32(0x37); 161 if (pwrite(params->fsfd, &pme, MACPPC_BOOT_BLOCK_BLOCKSIZE, 162 1 * MACPPC_BOOT_BLOCK_BLOCKSIZE) != MACPPC_BOOT_BLOCK_BLOCKSIZE) { 163 warn("Can't write Apple Partition Map into sector 1 of `%s'", 164 params->filesystem); 165 return (0); 166 } 167 168 /* block 2: NetBSD partition */ 169 memset(&pme, 0, sizeof(pme)); 170 pme.pmSig = htobe16(APPLE_PART_MAP_ENTRY_MAGIC); 171 pme.pmMapBlkCnt = htobe32(2); 172 pme.pmPyPartStart = htobe32(4); 173 pme.pmPartBlkCnt = htobe32(0x7fffffff); 174 pme.pmDataCnt = htobe32(0x7fffffff); 175 strlcpy(pme.pmPartName, "NetBSD", sizeof(pme.pmPartName)); 176 strlcpy(pme.pmPartType, "NetBSD/macppc", sizeof(pme.pmPartType)); 177 pme.pmPartStatus = htobe32(0x3b); 178 pme.pmBootSize = htobe32(roundup(params->s1stat.st_size, 512)); 179 pme.pmBootLoad = htobe32(0x4000); 180 pme.pmBootEntry = htobe32(0x4000); 181 strlcpy(pme.pmProcessor, "PowerPC", sizeof(pme.pmProcessor)); 182 if (pwrite(params->fsfd, &pme, MACPPC_BOOT_BLOCK_BLOCKSIZE, 183 2 * MACPPC_BOOT_BLOCK_BLOCKSIZE) != MACPPC_BOOT_BLOCK_BLOCKSIZE) { 184 warn("Can't write Apple Partition Map into sector 2 of `%s'", 185 params->filesystem); 186 return (0); 187 } 188 189 return (1); 190 } 191
Indexes created Wed Sep 24 02:09:48 GMT 2025