1 /* $NetBSD: x68k.c,v 1.1 2002/06/02 10:44:58 isaki 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 of Wasabi Systems. 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 #if defined(__RCSID) && !defined(__lint) 41 __RCSID("$NetBSD: x68k.c,v 1.1 2002/06/02 10:44:58 isaki Exp $"); 42 #endif /* !__lint */ 43 44 #if HAVE_CONFIG_H 45 #include "config.h" 46 #endif 47 48 #include <sys/param.h> 49 #include <sys/stat.h> 50 51 #include <assert.h> 52 #include <err.h> 53 #include <stddef.h> 54 #include <stdio.h> 55 #include <stdlib.h> 56 #include <string.h> 57 #include <unistd.h> 58 59 #include "installboot.h" 60 61 #define X68K_LABELOFFSET 64 62 #define X68K_LABELSIZE 404 /* reserve 16 partitions */ 63 64 static int x68k_clearheader(ib_params *, struct bbinfo_params *, uint8_t *); 65 66 67 static struct bbinfo_params bbparams = { 68 X68K_BBINFO_MAGIC, 69 X68K_BOOT_BLOCK_OFFSET, 70 X68K_BOOT_BLOCK_BLOCKSIZE, 71 X68K_BOOT_BLOCK_MAX_SIZE, 72 X68K_LABELOFFSET + X68K_LABELSIZE, /* XXX */ 73 BBINFO_BIG_ENDIAN, 74 }; 75 76 int 77 x68k_clearboot(ib_params *params) 78 { 79 80 assert(params != NULL); 81 82 if (params->flags & IB_STAGE1START) { 83 warnx("`-b bno' is not supported for %s", 84 params->machine->name); 85 return 0; 86 } 87 return shared_bbinfo_clearboot(params, &bbparams, x68k_clearheader); 88 } 89 90 static int 91 x68k_clearheader(ib_params *params, struct bbinfo_params *bb_params, 92 uint8_t *bb) 93 { 94 95 assert(params != NULL); 96 assert(bb_params != NULL); 97 assert(bb != NULL); 98 99 memset(bb, 0, X68K_LABELOFFSET); 100 return 1; 101 } 102 103 int 104 x68k_setboot(ib_params *params) 105 { 106 struct stat bootstrapsb; 107 char bb[X68K_BOOT_BLOCK_MAX_SIZE]; 108 char label[X68K_LABELSIZE]; 109 uint32_t s1start; 110 int retval; 111 ssize_t rv; 112 113 assert(params != NULL); 114 assert(params->fsfd != -1); 115 assert(params->filesystem != NULL); 116 assert(params->s1fd != -1); 117 assert(params->stage1 != NULL); 118 119 retval = 0; 120 121 if (params->flags & IB_STAGE1START) 122 s1start = params->s1start; 123 else 124 s1start = X68K_BOOT_BLOCK_OFFSET / 125 X68K_BOOT_BLOCK_BLOCKSIZE; 126 127 /* read disklabel on the target disk */ 128 rv = pread(params->fsfd, label, sizeof label, 129 s1start * X68K_BOOT_BLOCK_BLOCKSIZE + X68K_LABELOFFSET); 130 if (rv == -1) { 131 warn("Reading `%s'", params->filesystem); 132 goto done; 133 } else if (rv != sizeof label) { 134 warnx("Reading `%s': short read", params->filesystem); 135 goto done; 136 } 137 138 if (fstat(params->s1fd, &bootstrapsb) == -1) { 139 warn("Examining `%s'", params->stage1); 140 goto done; 141 } 142 if (!S_ISREG(bootstrapsb.st_mode)) { 143 warnx("`%s' must be a regular file", params->stage1); 144 goto done; 145 } 146 147 /* read boot loader */ 148 memset(&bb, 0, sizeof bb); 149 rv = read(params->s1fd, &bb, sizeof bb); 150 if (rv == -1) { 151 warn("Reading `%s'", params->stage1); 152 goto done; 153 } 154 /* then, overwrite disklabel */ 155 memcpy(&bb[X68K_LABELOFFSET], &label, sizeof label); 156 157 if (params->flags & IB_VERBOSE) { 158 printf("Bootstrap start sector: %#x\n", s1start); 159 printf("Bootstrap byte count: %#x\n", (unsigned)rv); 160 printf("%sriting bootstrap\n", 161 (params->flags & IB_NOWRITE) ? "Not w" : "W"); 162 } 163 if (params->flags & IB_NOWRITE) { 164 retval = 1; 165 goto done; 166 } 167 168 /* write boot loader and disklabel into the target disk */ 169 rv = pwrite(params->fsfd, &bb, X68K_BOOT_BLOCK_MAX_SIZE, 170 s1start * X68K_BOOT_BLOCK_BLOCKSIZE); 171 if (rv == -1) { 172 warn("Writing `%s'", params->filesystem); 173 goto done; 174 } else if (rv != X68K_BOOT_BLOCK_MAX_SIZE) { 175 warnx("Writing `%s': short write", params->filesystem); 176 goto done; 177 } else 178 retval = 1; 179 180 done: 181 return (retval); 182 } 183