hp300.c revision 1.20
1 /* $NetBSD: hp300.c,v 1.20 2025/03/30 03:03:27 tsutsui 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 * 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: hp300.c,v 1.20 2025/03/30 03:03:27 tsutsui Exp $"); 39 #endif /* !__lint */ 40 41 /* We need the target disklabel.h, not the hosts one..... */ 42 #ifdef HAVE_NBTOOL_CONFIG_H 43 #include "nbtool_config.h" 44 #include <nbinclude/hp300/disklabel.h> 45 #include <nbinclude/sys/disklabel.h> 46 #else 47 #include <sys/disklabel.h> 48 #endif 49 #include <sys/fcntl.h> 50 #include <sys/ioctl.h> 51 #include <sys/mman.h> 52 #include <sys/param.h> 53 54 #include <assert.h> 55 #include <err.h> 56 #include <md5.h> 57 #include <stddef.h> 58 #include <stdio.h> 59 #include <stdlib.h> 60 #include <string.h> 61 #include <unistd.h> 62 63 #include "installboot.h" 64 65 #define HP300_MAXBLOCKS 1 /* Only contiguous blocks are expected. */ 66 #define LIF_VOLDIRSIZE 1024 /* size of LIF volume header and directory */ 67 68 static int hp300_setboot(ib_params *); 69 70 struct ib_mach ib_mach_hp300 = { 71 .name = "hp300", 72 .setboot = hp300_setboot, 73 .clearboot = no_clearboot, 74 .editboot = no_editboot, 75 .valid_flags = IB_APPEND, 76 }; 77 78 static int 79 hp300_setboot(ib_params *params) 80 { 81 int retval; 82 uint8_t *bootstrap; 83 size_t bootstrap_size; 84 ssize_t rv; 85 struct partition *boot; 86 struct hp300_lifdir *lifdir; 87 int offset; 88 int i; 89 unsigned int secsize = HP300_SECTSIZE; 90 uint64_t boot_size, boot_offset; 91 #ifdef SUPPORT_CD9660 92 uint32_t nblk; 93 ib_block *blocks; 94 #endif 95 struct disklabel *label; 96 97 assert(params != NULL); 98 assert(params->fsfd != -1); 99 assert(params->filesystem != NULL); 100 assert(params->s1fd != -1); 101 assert(params->stage1 != NULL); 102 103 retval = 0; 104 bootstrap = MAP_FAILED; 105 106 /* needs whole LIF volume/directory and actual bootstrap by default */ 107 bootstrap_size = params->s1stat.st_size; 108 109 label = malloc(params->sectorsize); 110 if (label == NULL) { 111 warn("Failed to allocate memory for disklabel"); 112 goto done; 113 } 114 115 #ifdef SUPPORT_CD9660 116 if (params->stage2 != NULL) { 117 /* 118 * Use contiguous blocks of SYS_BOOT in the target filesystem 119 * (assuming ISO9660) for a LIF directory entry used 120 * by BOOTROM on bootstrap. 121 */ 122 if (strcmp(params->fstype->name, "cd9660") != 0) { 123 warn("Target filesystem `%s' is unexpected", 124 params->fstype->name); 125 } 126 127 if (S_ISREG(params->fsstat.st_mode)) { 128 if (fsync(params->fsfd) == -1) 129 warn("Synchronising file system `%s'", 130 params->filesystem); 131 } else { 132 /* Don't allow real file systems for sanity */ 133 warnx("`%s' must be a regular file to append " 134 "a bootstrap", params->filesystem); 135 goto done; 136 } 137 138 /* Allocate space for our block list. */ 139 nblk = HP300_MAXBLOCKS; 140 blocks = malloc(sizeof(*blocks) * nblk); 141 if (blocks == NULL) { 142 warn("Allocating %lu bytes for block list", 143 (unsigned long)sizeof(*blocks) * nblk); 144 goto done; 145 } 146 147 /* Check the block of for the SYS_UBOOT in the target fs */ 148 if (!params->fstype->findstage2(params, &nblk, blocks)) 149 goto done; 150 151 if (nblk == 0) { 152 warnx("Secondary bootstrap `%s' is empty", 153 params->stage2); 154 goto done; 155 } else if (nblk > 1) { 156 warnx("Secondary bootstrap `%s' doesn't have " 157 "contiguous blocks", params->stage2); 158 goto done; 159 } 160 161 boot_offset = blocks[0].block * params->fstype->blocksize; 162 /* need to read only LIF volume and directories */ 163 bootstrap_size = LIF_VOLDIRSIZE; 164 165 if ((params->flags & IB_VERBOSE) != 0) { 166 printf("Bootstrap `%s' found at offset %lu in `%s'\n", 167 params->stage2, (unsigned long)boot_offset, 168 params->filesystem); 169 } 170 171 } else 172 #endif 173 if (params->flags & IB_APPEND) { 174 if (!S_ISREG(params->fsstat.st_mode)) { 175 warnx( 176 "`%s' must be a regular file to append a bootstrap", 177 params->filesystem); 178 goto done; 179 } 180 boot_offset = roundup(params->fsstat.st_size, HP300_SECTSIZE); 181 } else { 182 /* 183 * The bootstrap can be well over 8k, and must go into a BOOT 184 * partition. Read NetBSD label to locate BOOT partition. 185 */ 186 if (pread(params->fsfd, label, params->sectorsize, 187 LABELSECTOR * params->sectorsize) 188 != (ssize_t)params->sectorsize) { 189 warn("reading disklabel"); 190 goto done; 191 } 192 /* And a quick validation - must be a big-endian label */ 193 secsize = be32toh(label->d_secsize); 194 if (label->d_magic != htobe32(DISKMAGIC) || 195 label->d_magic2 != htobe32(DISKMAGIC) || 196 secsize == 0 || secsize & (secsize - 1) || 197 be16toh(label->d_npartitions) > MAXMAXPARTITIONS) { 198 warnx("Invalid disklabel in %s", params->filesystem); 199 goto done; 200 } 201 202 i = be16toh(label->d_npartitions); 203 for (boot = label->d_partitions; ; boot++) { 204 if (--i < 0) { 205 warnx("No BOOT partition"); 206 goto done; 207 } 208 if (boot->p_fstype == FS_BOOT) 209 break; 210 } 211 boot_size = be32toh(boot->p_size) * (uint64_t)secsize; 212 boot_offset = be32toh(boot->p_offset) * (uint64_t)secsize; 213 214 /* 215 * We put the entire LIF file into the BOOT partition even when 216 * it doesn't start at the beginning of the disk. 217 * 218 * Maybe we ought to be able to take a binary file and add 219 * it to the LIF filesystem. 220 */ 221 if (boot_size < (uint64_t)params->s1stat.st_size) { 222 warn("BOOT partition too small (%llu < %llu)", 223 (unsigned long long)boot_size, 224 (unsigned long long)params->s1stat.st_size); 225 goto done; 226 } 227 } 228 229 /* Read LIF volume/directory (and bootstrap) from stage1 */ 230 bootstrap = mmap(NULL, bootstrap_size, 231 PROT_READ | PROT_WRITE, MAP_PRIVATE, params->s1fd, 0); 232 if (bootstrap == MAP_FAILED) { 233 warn("mmapping `%s'", params->stage1); 234 goto done; 235 } 236 237 /* Relocate files, sanity check LIF directory on the way */ 238 lifdir = (void *)(bootstrap + HP300_SECTSIZE * 2); 239 for (i = 0; i < 8; lifdir++, i++) { 240 uint32_t addr = be32toh(lifdir->dir_addr); 241 uint32_t limit = (params->s1stat.st_size - 1) / HP300_SECTSIZE 242 + 1; 243 uint32_t end = addr + be32toh(lifdir->dir_length); 244 if (end > limit) { 245 warnx("LIF entry %d larger (%u %u) than LIF file", 246 i, end, limit); 247 goto done; 248 } 249 if (addr != 0 && boot_offset != 0) 250 lifdir->dir_addr = htobe32(addr + boot_offset 251 / HP300_SECTSIZE); 252 } 253 254 if (params->flags & IB_NOWRITE) { 255 retval = 1; 256 goto done; 257 } 258 259 /* Write LIF volume header and directory to sectors 0 and 1 */ 260 rv = pwrite(params->fsfd, bootstrap, LIF_VOLDIRSIZE, 0); 261 if (rv != LIF_VOLDIRSIZE) { 262 if (rv == -1) 263 warn("Writing `%s'", params->filesystem); 264 else 265 warnx("Writing `%s': short write", params->filesystem); 266 goto done; 267 } 268 269 #ifdef SUPPORT_CD9660 270 if (params->stage2 != NULL) { 271 /* 272 * Bootstrap in the target filesystem is used. 273 * No need to write bootstrap to BOOT partition. 274 */ 275 retval = 1; 276 goto done; 277 } 278 #endif 279 280 /* Write files to BOOT partition */ 281 offset = boot_offset <= HP300_SECTSIZE * 16 ? HP300_SECTSIZE * 16 : 0; 282 i = roundup(params->s1stat.st_size, secsize) - offset; 283 rv = pwrite(params->fsfd, bootstrap + offset, i, boot_offset + offset); 284 if (rv != i) { 285 if (rv == -1) 286 warn("Writing boot filesystem of `%s'", 287 params->filesystem); 288 else 289 warnx("Writing boot filesystem of `%s': short write", 290 params->filesystem); 291 goto done; 292 } 293 294 retval = 1; 295 296 done: 297 if (label != NULL) 298 free(label); 299 if (bootstrap != MAP_FAILED) 300 munmap(bootstrap, bootstrap_size); 301 return retval; 302 } 303
Indexes created Fri Oct 03 02:09:57 GMT 2025