1 /* $NetBSD: macppc.c,v 1.9 2008/04/28 20:24:16 martin 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 1.9 2008/04/28 20:24:16 martin Exp $"); 39 #endif /* !__lint */ 40 41 #include <sys/param.h> 42 43 #include <assert.h> 44 #include <err.h> 45 #include <stdio.h> 46 #include <string.h> 47 #include <unistd.h> 48 49 #include "installboot.h" 50 51 static struct bbinfo_params bbparams = { 52 MACPPC_BBINFO_MAGIC, 53 MACPPC_BOOT_BLOCK_OFFSET, 54 MACPPC_BOOT_BLOCK_BLOCKSIZE, 55 MACPPC_BOOT_BLOCK_MAX_SIZE, 56 0, 57 BBINFO_BIG_ENDIAN, 58 }; 59 60 static int writeapplepartmap(ib_params *, struct bbinfo_params *, uint8_t *); 61 62 static int macppc_clearboot(ib_params *); 63 static int macppc_setboot(ib_params *); 64 65 struct ib_mach ib_mach_macppc = 66 { "macppc", macppc_setboot, macppc_clearboot, no_editboot, 67 IB_STAGE2START }; 68 69 static int 70 macppc_clearboot(ib_params *params) 71 { 72 73 assert(params != NULL); 74 75 /* XXX: maybe clear the apple partition map too? */ 76 return (shared_bbinfo_clearboot(params, &bbparams, NULL)); 77 } 78 79 static int 80 macppc_setboot(ib_params *params) 81 { 82 83 assert(params != NULL); 84 85 return (shared_bbinfo_setboot(params, &bbparams, writeapplepartmap)); 86 } 87 88 89 static int 90 writeapplepartmap(ib_params *params, struct bbinfo_params *bb_params, 91 uint8_t *bb) 92 { 93 struct apple_drvr_map dm; 94 struct apple_part_map_entry pme; 95 96 assert (params != NULL); 97 assert (bb_params != NULL); 98 assert (bb != NULL); 99 100 if (params->flags & IB_NOWRITE) 101 return (1); 102 103 /* block 0: driver map */ 104 if (pread(params->fsfd, &dm, MACPPC_BOOT_BLOCK_BLOCKSIZE, 0) != 105 MACPPC_BOOT_BLOCK_BLOCKSIZE) { 106 warn("Can't read sector 0 of `%s'", params->filesystem); 107 return (0); 108 } 109 dm.sbSig = htobe16(APPLE_DRVR_MAP_MAGIC); 110 dm.sbBlockSize = htobe16(512); 111 dm.sbBlkCount = htobe32(0); 112 if (pwrite(params->fsfd, &dm, MACPPC_BOOT_BLOCK_BLOCKSIZE, 0) != 113 MACPPC_BOOT_BLOCK_BLOCKSIZE) { 114 warn("Can't write sector 0 of `%s'", params->filesystem); 115 return (0); 116 } 117 118 /* block 1: Apple Partition Map */ 119 memset(&pme, 0, sizeof(pme)); 120 pme.pmSig = htobe16(APPLE_PART_MAP_ENTRY_MAGIC); 121 pme.pmMapBlkCnt = htobe32(2); 122 pme.pmPyPartStart = htobe32(1); 123 pme.pmPartBlkCnt = htobe32(2); 124 pme.pmDataCnt = htobe32(2); 125 strlcpy(pme.pmPartName, "Apple", sizeof(pme.pmPartName)); 126 strlcpy(pme.pmPartType, "Apple_partition_map", sizeof(pme.pmPartType)); 127 pme.pmPartStatus = htobe32(0x37); 128 if (pwrite(params->fsfd, &pme, MACPPC_BOOT_BLOCK_BLOCKSIZE, 129 1 * MACPPC_BOOT_BLOCK_BLOCKSIZE) != MACPPC_BOOT_BLOCK_BLOCKSIZE) { 130 warn("Can't write Apple Partition Map into sector 1 of `%s'", 131 params->filesystem); 132 return (0); 133 } 134 135 /* block 2: NetBSD partition */ 136 memset(&pme, 0, sizeof(pme)); 137 pme.pmSig = htobe16(APPLE_PART_MAP_ENTRY_MAGIC); 138 pme.pmMapBlkCnt = htobe32(2); 139 pme.pmPyPartStart = htobe32(4); 140 pme.pmPartBlkCnt = htobe32(0x7fffffff); 141 pme.pmDataCnt = htobe32(0x7fffffff); 142 strlcpy(pme.pmPartName, "NetBSD", sizeof(pme.pmPartName)); 143 strlcpy(pme.pmPartType, "NetBSD/macppc", sizeof(pme.pmPartType)); 144 pme.pmPartStatus = htobe32(0x3b); 145 pme.pmBootSize = htobe32(roundup(params->s1stat.st_size, 512)); 146 pme.pmBootLoad = htobe32(0x4000); 147 pme.pmBootEntry = htobe32(0x4000); 148 strlcpy(pme.pmProcessor, "PowerPC", sizeof(pme.pmProcessor)); 149 if (pwrite(params->fsfd, &pme, MACPPC_BOOT_BLOCK_BLOCKSIZE, 150 2 * MACPPC_BOOT_BLOCK_BLOCKSIZE) != MACPPC_BOOT_BLOCK_BLOCKSIZE) { 151 warn("Can't write Apple Partition Map into sector 2 of `%s'", 152 params->filesystem); 153 return (0); 154 } 155 156 return (1); 157 } 158