x68k.c revision 1.3
1 /* $NetBSD: x68k.c,v 1.3 2006/02/18 10:08:07 dsl 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 #if HAVE_NBTOOL_CONFIG_H 40 #include "nbtool_config.h" 41 #endif 42 43 #include <sys/cdefs.h> 44 #if !defined(__lint) 45 __RCSID("$NetBSD: x68k.c,v 1.3 2006/02/18 10:08:07 dsl Exp $"); 46 #endif /* !__lint */ 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 static int x68k_clearboot(ib_params *); 67 static int x68k_setboot(ib_params *); 68 69 struct ib_mach ib_mach_x68k = 70 { "x68k", x68k_setboot, x68k_clearboot, no_editboot, 71 IB_STAGE1START | IB_STAGE2START }; 72 73 static struct bbinfo_params bbparams = { 74 X68K_BBINFO_MAGIC, 75 X68K_BOOT_BLOCK_OFFSET, 76 X68K_BOOT_BLOCK_BLOCKSIZE, 77 X68K_BOOT_BLOCK_MAX_SIZE, 78 X68K_LABELOFFSET + X68K_LABELSIZE, /* XXX */ 79 BBINFO_BIG_ENDIAN, 80 }; 81 82 static int 83 x68k_clearboot(ib_params *params) 84 { 85 86 assert(params != NULL); 87 88 if (params->flags & IB_STAGE1START) { 89 warnx("`-b bno' is not supported for %s", 90 params->machine->name); 91 return 0; 92 } 93 return shared_bbinfo_clearboot(params, &bbparams, x68k_clearheader); 94 } 95 96 static int 97 x68k_clearheader(ib_params *params, struct bbinfo_params *bb_params, 98 uint8_t *bb) 99 { 100 101 assert(params != NULL); 102 assert(bb_params != NULL); 103 assert(bb != NULL); 104 105 memset(bb, 0, X68K_LABELOFFSET); 106 return 1; 107 } 108 109 static int 110 x68k_setboot(ib_params *params) 111 { 112 struct stat bootstrapsb; 113 char bb[X68K_BOOT_BLOCK_MAX_SIZE]; 114 char label[X68K_LABELSIZE]; 115 uint32_t s1start; 116 int retval; 117 ssize_t rv; 118 119 assert(params != NULL); 120 assert(params->fsfd != -1); 121 assert(params->filesystem != NULL); 122 assert(params->s1fd != -1); 123 assert(params->stage1 != NULL); 124 125 retval = 0; 126 127 if (params->flags & IB_STAGE1START) 128 s1start = params->s1start; 129 else 130 s1start = X68K_BOOT_BLOCK_OFFSET / 131 X68K_BOOT_BLOCK_BLOCKSIZE; 132 133 /* read disklabel on the target disk */ 134 rv = pread(params->fsfd, label, sizeof label, 135 s1start * X68K_BOOT_BLOCK_BLOCKSIZE + X68K_LABELOFFSET); 136 if (rv == -1) { 137 warn("Reading `%s'", params->filesystem); 138 goto done; 139 } else if (rv != sizeof label) { 140 warnx("Reading `%s': short read", params->filesystem); 141 goto done; 142 } 143 144 if (fstat(params->s1fd, &bootstrapsb) == -1) { 145 warn("Examining `%s'", params->stage1); 146 goto done; 147 } 148 if (!S_ISREG(bootstrapsb.st_mode)) { 149 warnx("`%s' must be a regular file", params->stage1); 150 goto done; 151 } 152 153 /* read boot loader */ 154 memset(&bb, 0, sizeof bb); 155 rv = read(params->s1fd, &bb, sizeof bb); 156 if (rv == -1) { 157 warn("Reading `%s'", params->stage1); 158 goto done; 159 } 160 /* then, overwrite disklabel */ 161 memcpy(&bb[X68K_LABELOFFSET], &label, sizeof label); 162 163 if (params->flags & IB_VERBOSE) { 164 printf("Bootstrap start sector: %#x\n", s1start); 165 printf("Bootstrap byte count: %#x\n", (unsigned)rv); 166 printf("%sriting bootstrap\n", 167 (params->flags & IB_NOWRITE) ? "Not w" : "W"); 168 } 169 if (params->flags & IB_NOWRITE) { 170 retval = 1; 171 goto done; 172 } 173 174 /* write boot loader and disklabel into the target disk */ 175 rv = pwrite(params->fsfd, &bb, X68K_BOOT_BLOCK_MAX_SIZE, 176 s1start * X68K_BOOT_BLOCK_BLOCKSIZE); 177 if (rv == -1) { 178 warn("Writing `%s'", params->filesystem); 179 goto done; 180 } else if (rv != X68K_BOOT_BLOCK_MAX_SIZE) { 181 warnx("Writing `%s': short write", params->filesystem); 182 goto done; 183 } else 184 retval = 1; 185 186 done: 187 return (retval); 188 } 189
Indexes created Fri Sep 26 20:09:58 GMT 2025