hp300.c revision 1.17.2.1
1 /* $NetBSD: hp300.c,v 1.17.2.1 2024/06/22 10:57:11 martin 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 1.17.2.1 2024/06/22 10:57:11 martin 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 label = malloc(params->sectorsize); 107 if (label == NULL) { 108 warn("Failed to allocate memory for disklabel"); 109 goto done; 110 } 111 112 #ifdef SUPPORT_CD9660 113 if (params->stage2 != NULL) { 114 /* 115 * Use contiguous blocks of SYS_BOOT in the target filesystem 116 * (assuming ISO9660) for a LIF directory entry used 117 * by BOOTROM on bootstrap. 118 */ 119 if (strcmp(params->fstype->name, "cd9660") != 0) { 120 warn("Target filesystem `%s' is unexpected", 121 params->fstype->name); 122 } 123 124 if (S_ISREG(params->fsstat.st_mode)) { 125 if (fsync(params->fsfd) == -1) 126 warn("Synchronising file system `%s'", 127 params->filesystem); 128 } else { 129 /* Don't allow real file systems for sanity */ 130 warnx("`%s' must be a regular file to append " 131 "a bootstrap", params->filesystem); 132 goto done; 133 } 134 135 /* Allocate space for our block list. */ 136 nblk = HP300_MAXBLOCKS; 137 blocks = malloc(sizeof(*blocks) * nblk); 138 if (blocks == NULL) { 139 warn("Allocating %lu bytes for block list", 140 (unsigned long)sizeof(*blocks) * nblk); 141 goto done; 142 } 143 144 /* Check the block of for the SYS_UBOOT in the target fs */ 145 if (!params->fstype->findstage2(params, &nblk, blocks)) 146 goto done; 147 148 if (nblk == 0) { 149 warnx("Secondary bootstrap `%s' is empty", 150 params->stage2); 151 goto done; 152 } else if (nblk > 1) { 153 warnx("Secondary bootstrap `%s' doesn't have " 154 "contiguous blocks", params->stage2); 155 goto done; 156 } 157 158 boot_offset = blocks[0].block * params->fstype->blocksize; 159 /* need to read only LIF volume and directories */ 160 bootstrap_size = LIF_VOLDIRSIZE; 161 162 if ((params->flags & IB_VERBOSE) != 0) { 163 printf("Bootstrap `%s' found at offset %lu in `%s'\n", 164 params->stage2, (unsigned long)boot_offset, 165 params->filesystem); 166 } 167 168 } else 169 #endif 170 if (params->flags & IB_APPEND) { 171 if (!S_ISREG(params->fsstat.st_mode)) { 172 warnx( 173 "`%s' must be a regular file to append a bootstrap", 174 params->filesystem); 175 goto done; 176 } 177 boot_offset = roundup(params->fsstat.st_size, HP300_SECTSIZE); 178 } else { 179 /* 180 * The bootstrap can be well over 8k, and must go into a BOOT 181 * partition. Read NetBSD label to locate BOOT partition. 182 */ 183 if (pread(params->fsfd, label, params->sectorsize, 184 LABELSECTOR * params->sectorsize) 185 != (ssize_t)params->sectorsize) { 186 warn("reading disklabel"); 187 goto done; 188 } 189 /* And a quick validation - must be a big-endian label */ 190 secsize = be32toh(label->d_secsize); 191 if (label->d_magic != htobe32(DISKMAGIC) || 192 label->d_magic2 != htobe32(DISKMAGIC) || 193 secsize == 0 || secsize & (secsize - 1) || 194 be16toh(label->d_npartitions) > MAXMAXPARTITIONS) { 195 warnx("Invalid disklabel in %s", params->filesystem); 196 goto done; 197 } 198 199 i = be16toh(label->d_npartitions); 200 for (boot = label->d_partitions; ; boot++) { 201 if (--i < 0) { 202 warnx("No BOOT partition"); 203 goto done; 204 } 205 if (boot->p_fstype == FS_BOOT) 206 break; 207 } 208 boot_size = be32toh(boot->p_size) * (uint64_t)secsize; 209 boot_offset = be32toh(boot->p_offset) * (uint64_t)secsize; 210 211 /* 212 * We put the entire LIF file into the BOOT partition even when 213 * it doesn't start at the beginning of the disk. 214 * 215 * Maybe we ought to be able to take a binary file and add 216 * it to the LIF filesystem. 217 */ 218 if (boot_size < (uint64_t)params->s1stat.st_size) { 219 warn("BOOT partition too small (%llu < %llu)", 220 (unsigned long long)boot_size, 221 (unsigned long long)params->s1stat.st_size); 222 goto done; 223 } 224 } 225 226 #ifdef SUPPORT_CD9660 227 if (params->stage2 != NULL) { 228 /* Use bootstrap file in the target filesystem. */ 229 bootstrap = mmap(NULL, bootstrap_size, 230 PROT_READ | PROT_WRITE, MAP_PRIVATE, params->fsfd, 231 boot_offset); 232 if (bootstrap == MAP_FAILED) { 233 warn("mmapping `%s'", params->filesystem); 234 goto done; 235 } 236 } else 237 #endif 238 { 239 /* Use bootstrap specified as stage1. */ 240 bootstrap_size = params->s1stat.st_size; 241 bootstrap = mmap(NULL, bootstrap_size, 242 PROT_READ | PROT_WRITE, MAP_PRIVATE, params->s1fd, 0); 243 if (bootstrap == MAP_FAILED) { 244 warn("mmapping `%s'", params->stage1); 245 goto done; 246 } 247 } 248 249 /* Relocate files, sanity check LIF directory on the way */ 250 lifdir = (void *)(bootstrap + HP300_SECTSIZE * 2); 251 for (i = 0; i < 8; lifdir++, i++) { 252 uint32_t addr = be32toh(lifdir->dir_addr); 253 uint32_t limit = (params->s1stat.st_size - 1) / HP300_SECTSIZE 254 + 1; 255 uint32_t end = addr + be32toh(lifdir->dir_length); 256 if (end > limit) { 257 warnx("LIF entry %d larger (%u %u) than LIF file", 258 i, end, limit); 259 goto done; 260 } 261 if (addr != 0 && boot_offset != 0) 262 lifdir->dir_addr = htobe32(addr + boot_offset 263 / HP300_SECTSIZE); 264 } 265 266 if (params->flags & IB_NOWRITE) { 267 retval = 1; 268 goto done; 269 } 270 271 /* Write LIF volume header and directory to sectors 0 and 1 */ 272 rv = pwrite(params->fsfd, bootstrap, LIF_VOLDIRSIZE, 0); 273 if (rv != LIF_VOLDIRSIZE) { 274 if (rv == -1) 275 warn("Writing `%s'", params->filesystem); 276 else 277 warnx("Writing `%s': short write", params->filesystem); 278 goto done; 279 } 280 281 #ifdef SUPPORT_CD9660 282 if (params->stage2 != NULL) { 283 /* 284 * Bootstrap in the target filesystem is used. 285 * No need to write bootstrap to BOOT partition. 286 */ 287 retval = 1; 288 goto done; 289 } 290 #endif 291 292 /* Write files to BOOT partition */ 293 offset = boot_offset <= HP300_SECTSIZE * 16 ? HP300_SECTSIZE * 16 : 0; 294 i = roundup(params->s1stat.st_size, secsize) - offset; 295 rv = pwrite(params->fsfd, bootstrap + offset, i, boot_offset + offset); 296 if (rv != i) { 297 if (rv == -1) 298 warn("Writing boot filesystem of `%s'", 299 params->filesystem); 300 else 301 warnx("Writing boot filesystem of `%s': short write", 302 params->filesystem); 303 goto done; 304 } 305 306 retval = 1; 307 308 done: 309 if (label != NULL) 310 free(label); 311 if (bootstrap != MAP_FAILED) 312 munmap(bootstrap, bootstrap_size); 313 return retval; 314 } 315
Indexes created Fri Oct 03 02:09:57 GMT 2025