1 /* $NetBSD: hp300.c,v 1.7 2006/02/18 10:08:07 dsl Exp $ */ 2 3 /*- 4 * Copyright (c) 2003 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by David Laight. 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: hp300.c,v 1.7 2006/02/18 10:08:07 dsl Exp $"); 46 #endif /* !__lint */ 47 48 /* We need the target disklabel.h, not the hosts one..... */ 49 #ifdef HAVE_NBTOOL_CONFIG_H 50 #include "nbtool_config.h" 51 #include <nbinclude/sys/disklabel.h> 52 #else 53 #include <sys/disklabel.h> 54 #endif 55 #include <sys/fcntl.h> 56 #include <sys/ioctl.h> 57 #include <sys/mman.h> 58 #include <sys/param.h> 59 60 #include <assert.h> 61 #include <err.h> 62 #include <md5.h> 63 #include <stddef.h> 64 #include <stdio.h> 65 #include <stdlib.h> 66 #include <string.h> 67 #include <unistd.h> 68 69 #include "installboot.h" 70 71 static int hp300_setboot(ib_params *); 72 73 struct ib_mach ib_mach_hp300 = 74 { "hp300", hp300_setboot, no_clearboot, no_editboot, IB_APPEND }; 75 76 static int 77 hp300_setboot(ib_params *params) 78 { 79 int retval; 80 uint8_t *bootstrap; 81 ssize_t rv; 82 struct partition *boot; 83 struct hp300_lifdir *lifdir; 84 int offset; 85 int i; 86 unsigned int secsize = HP300_SECTSIZE; 87 uint64_t boot_size, boot_offset; 88 char label_buf[DEV_BSIZE]; 89 struct disklabel *label = (void *)label_buf; 90 91 assert(params != NULL); 92 assert(params->fsfd != -1); 93 assert(params->filesystem != NULL); 94 assert(params->s1fd != -1); 95 assert(params->stage1 != NULL); 96 97 retval = 0; 98 bootstrap = MAP_FAILED; 99 100 if (params->flags & IB_APPEND) { 101 if (!S_ISREG(params->fsstat.st_mode)) { 102 warnx( 103 "`%s' must be a regular file to append a bootstrap", 104 params->filesystem); 105 goto done; 106 } 107 boot_offset = roundup(params->fsstat.st_size, HP300_SECTSIZE); 108 } else { 109 /* 110 * The bootstrap can be well over 8k, and must go into a BOOT 111 * partition. Read NetBSD label to locate BOOT partition. 112 */ 113 if (pread(params->fsfd, label, DEV_BSIZE, 2 * DEV_BSIZE) 114 != DEV_BSIZE) { 115 warn("reading disklabel"); 116 goto done; 117 } 118 /* And a quick validation - must be a big-endian label */ 119 secsize = be32toh(label->d_secsize); 120 if (label->d_magic != be32toh(DISKMAGIC) || 121 label->d_magic2 != be32toh(DISKMAGIC) || 122 secsize == 0 || secsize & (secsize - 1) || 123 be32toh(label->d_npartitions) > MAXMAXPARTITIONS) { 124 warnx("Invalid disklabel in %s", params->filesystem); 125 goto done; 126 } 127 128 i = be32toh(label->d_npartitions); 129 for (boot = label->d_partitions; ; boot++) { 130 if (--i < 0) { 131 warnx("No BOOT partition"); 132 goto done; 133 } 134 if (boot->p_fstype == FS_BOOT) 135 break; 136 } 137 boot_size = be32toh(boot->p_size) * (uint64_t)secsize; 138 boot_offset = be32toh(boot->p_offset) * (uint64_t)secsize; 139 140 /* 141 * We put the entire LIF file into the BOOT partition even when 142 * it doesn't start at the beginning of the disk. 143 * 144 * Maybe we ought to be able to take a binary file and add 145 * it to the LIF filesystem. 146 */ 147 if (boot_size < params->s1stat.st_size) { 148 warn("BOOT partition too small (%llu < %llu)", 149 (unsigned long long)boot_size, 150 (unsigned long long)params->s1stat.st_size); 151 goto done; 152 } 153 } 154 155 bootstrap = mmap(NULL, params->s1stat.st_size, PROT_READ | PROT_WRITE, 156 MAP_PRIVATE, params->s1fd, 0); 157 if (bootstrap == MAP_FAILED) { 158 warn("mmaping `%s'", params->stage1); 159 goto done; 160 } 161 162 /* Relocate files, sanity check LIF directory on the way */ 163 lifdir = (void *)(bootstrap + HP300_SECTSIZE * 2); 164 for (i = 0; i < 8; lifdir++, i++) { 165 int addr = be32toh(lifdir->dir_addr); 166 int limit = (params->s1stat.st_size - 1) / HP300_SECTSIZE + 1; 167 if (addr + be32toh(lifdir->dir_length) > limit) { 168 warnx("LIF entry %d larger (%d %d) than LIF file", 169 i, addr + be32toh(lifdir->dir_length), limit); 170 goto done; 171 } 172 if (addr != 0 && boot_offset != 0) 173 lifdir->dir_addr = htobe32(addr + boot_offset 174 / HP300_SECTSIZE); 175 } 176 177 if (params->flags & IB_NOWRITE) { 178 retval = 1; 179 goto done; 180 } 181 182 /* Write LIF volume header and directory to sectors 0 and 1 */ 183 rv = pwrite(params->fsfd, bootstrap, 1024, 0); 184 if (rv != 1024) { 185 if (rv == -1) 186 warn("Writing `%s'", params->filesystem); 187 else 188 warnx("Writing `%s': short write", params->filesystem); 189 goto done; 190 } 191 192 /* Write files to BOOT partition */ 193 offset = boot_offset <= HP300_SECTSIZE * 16 ? HP300_SECTSIZE * 16 : 0; 194 i = roundup(params->s1stat.st_size, secsize) - offset; 195 rv = pwrite(params->fsfd, bootstrap + offset, i, boot_offset + offset); 196 if (rv != i) { 197 if (rv == -1) 198 warn("Writing boot filesystem of `%s'", 199 params->filesystem); 200 else 201 warnx("Writing boot filesystem of `%s': short write", 202 params->filesystem); 203 goto done; 204 } 205 206 retval = 1; 207 208 done: 209 if (bootstrap != MAP_FAILED) 210 munmap(bootstrap, params->s1stat.st_size); 211 return retval; 212 } 213