macppc.c revision 1.8.18.1
1 /* $NetBSD: macppc.c,v 1.8.18.1 2008/05/18 12:36:19 yamt 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 1.8.18.1 2008/05/18 12:36:19 yamt 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 #endif 46 47 #include <assert.h> 48 #include <err.h> 49 #include <stdio.h> 50 #include <string.h> 51 #include <unistd.h> 52 53 #include "installboot.h" 54 55 static struct bbinfo_params bbparams = { 56 MACPPC_BBINFO_MAGIC, 57 MACPPC_BOOT_BLOCK_OFFSET, 58 MACPPC_BOOT_BLOCK_BLOCKSIZE, 59 MACPPC_BOOT_BLOCK_MAX_SIZE, 60 0, 61 BBINFO_BIG_ENDIAN, 62 }; 63 64 static int writeapplepartmap(ib_params *, struct bbinfo_params *, uint8_t *); 65 66 static int macppc_clearboot(ib_params *); 67 static int macppc_setboot(ib_params *); 68 69 struct ib_mach ib_mach_macppc = 70 { "macppc", macppc_setboot, macppc_clearboot, no_editboot, 71 IB_STAGE2START }; 72 73 static int 74 macppc_clearboot(ib_params *params) 75 { 76 77 assert(params != NULL); 78 79 /* XXX: maybe clear the apple partition map too? */ 80 return (shared_bbinfo_clearboot(params, &bbparams, NULL)); 81 } 82 83 static int 84 macppc_setboot(ib_params *params) 85 { 86 87 assert(params != NULL); 88 89 return (shared_bbinfo_setboot(params, &bbparams, writeapplepartmap)); 90 } 91 92 93 static int 94 writeapplepartmap(ib_params *params, struct bbinfo_params *bb_params, 95 uint8_t *bb) 96 { 97 struct apple_drvr_map dm; 98 struct apple_part_map_entry pme; 99 int rv; 100 #ifdef DIOCWLABEL 101 int enable; 102 #endif 103 104 assert (params != NULL); 105 assert (bb_params != NULL); 106 assert (bb != NULL); 107 108 if (params->flags & IB_NOWRITE) 109 return (1); 110 111 /* block 0: driver map */ 112 if (pread(params->fsfd, &dm, MACPPC_BOOT_BLOCK_BLOCKSIZE, 0) != 113 MACPPC_BOOT_BLOCK_BLOCKSIZE) { 114 warn("Can't read sector 0 of `%s'", params->filesystem); 115 return (0); 116 } 117 dm.sbSig = htobe16(APPLE_DRVR_MAP_MAGIC); 118 dm.sbBlockSize = htobe16(512); 119 dm.sbBlkCount = htobe32(0); 120 121 #ifdef DIOCWLABEL 122 /* 123 * block 0 is LABELSECTOR which might be protected by 124 * bounds_check_with_label(9). 125 */ 126 enable = 1; 127 rv = ioctl(params->fsfd, DIOCWLABEL, &enable); 128 if (rv != 0) { 129 warn("Cannot enable writes to the label sector"); 130 return 0; 131 } 132 #endif 133 rv = pwrite(params->fsfd, &dm, MACPPC_BOOT_BLOCK_BLOCKSIZE, 0); 134 135 #ifdef DIOCWLABEL 136 /* Reset write-protect. */ 137 enable = 0; 138 (void)ioctl(params->fsfd, DIOCWLABEL, &enable); 139 #endif 140 if (rv != MACPPC_BOOT_BLOCK_BLOCKSIZE) { 141 warn("Can't write sector 0 of `%s'", params->filesystem); 142 return (0); 143 } 144 145 /* block 1: Apple Partition Map */ 146 memset(&pme, 0, sizeof(pme)); 147 pme.pmSig = htobe16(APPLE_PART_MAP_ENTRY_MAGIC); 148 pme.pmMapBlkCnt = htobe32(2); 149 pme.pmPyPartStart = htobe32(1); 150 pme.pmPartBlkCnt = htobe32(2); 151 pme.pmDataCnt = htobe32(2); 152 strlcpy(pme.pmPartName, "Apple", sizeof(pme.pmPartName)); 153 strlcpy(pme.pmPartType, "Apple_partition_map", sizeof(pme.pmPartType)); 154 pme.pmPartStatus = htobe32(0x37); 155 if (pwrite(params->fsfd, &pme, MACPPC_BOOT_BLOCK_BLOCKSIZE, 156 1 * MACPPC_BOOT_BLOCK_BLOCKSIZE) != MACPPC_BOOT_BLOCK_BLOCKSIZE) { 157 warn("Can't write Apple Partition Map into sector 1 of `%s'", 158 params->filesystem); 159 return (0); 160 } 161 162 /* block 2: NetBSD partition */ 163 memset(&pme, 0, sizeof(pme)); 164 pme.pmSig = htobe16(APPLE_PART_MAP_ENTRY_MAGIC); 165 pme.pmMapBlkCnt = htobe32(2); 166 pme.pmPyPartStart = htobe32(4); 167 pme.pmPartBlkCnt = htobe32(0x7fffffff); 168 pme.pmDataCnt = htobe32(0x7fffffff); 169 strlcpy(pme.pmPartName, "NetBSD", sizeof(pme.pmPartName)); 170 strlcpy(pme.pmPartType, "NetBSD/macppc", sizeof(pme.pmPartType)); 171 pme.pmPartStatus = htobe32(0x3b); 172 pme.pmBootSize = htobe32(roundup(params->s1stat.st_size, 512)); 173 pme.pmBootLoad = htobe32(0x4000); 174 pme.pmBootEntry = htobe32(0x4000); 175 strlcpy(pme.pmProcessor, "PowerPC", sizeof(pme.pmProcessor)); 176 if (pwrite(params->fsfd, &pme, MACPPC_BOOT_BLOCK_BLOCKSIZE, 177 2 * MACPPC_BOOT_BLOCK_BLOCKSIZE) != MACPPC_BOOT_BLOCK_BLOCKSIZE) { 178 warn("Can't write Apple Partition Map into sector 2 of `%s'", 179 params->filesystem); 180 return (0); 181 } 182 183 return (1); 184 } 185
Indexes created Thu Oct 02 14:10:14 GMT 2025