installboot.c revision 1.31
1 /* $NetBSD: installboot.c,v 1.31 2009/04/05 11:55:39 lukem 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 * 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(__RCSID) && !defined(__lint) 38 __RCSID("$NetBSD: installboot.c,v 1.31 2009/04/05 11:55:39 lukem Exp $"); 39 #endif /* !__lint */ 40 41 #include <sys/ioctl.h> 42 #include <sys/utsname.h> 43 44 #include <assert.h> 45 #include <err.h> 46 #include <fcntl.h> 47 #include <limits.h> 48 #include <stdio.h> 49 #include <stdlib.h> 50 #include <stddef.h> 51 #include <string.h> 52 #include <unistd.h> 53 54 #include "installboot.h" 55 56 int main(int, char *[]); 57 static void getmachine(ib_params *, const char *, const char *); 58 static void getfstype(ib_params *, const char *, const char *); 59 static void parseoptions(ib_params *, const char *); 60 static void usage(void); 61 static void options_usage(void); 62 static void machine_usage(void); 63 static void fstype_usage(void); 64 65 static ib_params installboot_params; 66 67 #define OFFSET(field) offsetof(ib_params, field) 68 const struct option { 69 const char *name; /* Name of option */ 70 ib_flags flag; /* Corresponding IB_xxx flag */ 71 enum { /* Type of option value... */ 72 OPT_BOOL, /* no value */ 73 OPT_INT, /* numeric value */ 74 OPT_WORD, /* space/tab/, terminated */ 75 OPT_STRING /* null terminated */ 76 } type; 77 int offset; /* of field in ib_params */ 78 } options[] = { 79 { "alphasum", IB_ALPHASUM, OPT_BOOL, 0 }, 80 { "append", IB_APPEND, OPT_BOOL, 0 }, 81 { "command", IB_COMMAND, OPT_STRING, OFFSET(command) }, 82 { "console", IB_CONSOLE, OPT_WORD, OFFSET(console) }, 83 { "ioaddr", IB_CONSADDR, OPT_INT, OFFSET(consaddr) }, 84 { "keymap", IB_KEYMAP, OPT_WORD, OFFSET(keymap) }, 85 { "password", IB_PASSWORD, OPT_WORD, OFFSET(password) }, 86 { "resetvideo", IB_RESETVIDEO, OPT_BOOL, 0 }, 87 { "speed", IB_CONSPEED, OPT_INT, OFFSET(conspeed) }, 88 { "sunsum", IB_SUNSUM, OPT_BOOL, 0 }, 89 { "timeout", IB_TIMEOUT, OPT_INT, OFFSET(timeout) }, 90 { .name = NULL }, 91 }; 92 #undef OFFSET 93 #define OPTION(params, type, opt) (*(type *)((char *)(params) + (opt)->offset)) 94 95 int 96 main(int argc, char *argv[]) 97 { 98 struct utsname utsname; 99 ib_params *params; 100 unsigned long lval; 101 int ch, rv, mode; 102 char *p; 103 const char *op; 104 ib_flags unsupported_flags; 105 106 setprogname(argv[0]); 107 params = &installboot_params; 108 memset(params, 0, sizeof(*params)); 109 params->fsfd = -1; 110 params->s1fd = -1; 111 if ((p = getenv("MACHINE")) != NULL) 112 getmachine(params, p, "$MACHINE"); 113 114 while ((ch = getopt(argc, argv, "b:B:cefm:no:t:v")) != -1) { 115 switch (ch) { 116 117 case 'b': 118 case 'B': 119 if (*optarg == '\0') 120 goto badblock; 121 lval = strtoul(optarg, &p, 0); 122 if (lval > UINT32_MAX || *p != '\0') { 123 badblock: 124 errx(1, "Invalid block number `%s'", optarg); 125 } 126 if (ch == 'b') { 127 params->s1start = (uint32_t)lval; 128 params->flags |= IB_STAGE1START; 129 } else { 130 params->s2start = (uint32_t)lval; 131 params->flags |= IB_STAGE2START; 132 } 133 break; 134 135 case 'c': 136 params->flags |= IB_CLEAR; 137 break; 138 139 case 'e': 140 params->flags |= IB_EDIT; 141 break; 142 143 case 'f': 144 params->flags |= IB_FORCE; 145 break; 146 147 case 'm': 148 getmachine(params, optarg, "-m"); 149 break; 150 151 case 'n': 152 params->flags |= IB_NOWRITE; 153 break; 154 155 case 'o': 156 parseoptions(params, optarg); 157 break; 158 159 case 't': 160 getfstype(params, optarg, "-t"); 161 break; 162 163 case 'v': 164 params->flags |= IB_VERBOSE; 165 break; 166 167 case '?': 168 default: 169 usage(); 170 /* NOTREACHED */ 171 172 } 173 } 174 argc -= optind; 175 argv += optind; 176 177 if (params->flags & IB_CLEAR && params->flags & IB_EDIT) 178 usage(); 179 if (argc < 1 || argc + 2 * !!(params->flags & (IB_CLEAR | IB_EDIT)) > 3) 180 usage(); 181 182 /* set missing defaults */ 183 if (params->machine == NULL) { 184 if (uname(&utsname) == -1) 185 err(1, "Determine uname"); 186 getmachine(params, utsname.machine, "uname()"); 187 } 188 189 /* Check that options are supported by this system */ 190 unsupported_flags = params->flags & ~params->machine->valid_flags; 191 unsupported_flags &= ~(IB_VERBOSE | IB_NOWRITE | IB_CLEAR | IB_EDIT 192 | IB_FORCE); 193 if (unsupported_flags != 0) { 194 int ndx; 195 for (ndx = 0; options[ndx].name != NULL; ndx++) { 196 if (unsupported_flags & options[ndx].flag) { 197 unsupported_flags &= ~options[ndx].flag; 198 warnx("`-o %s' is not supported for %s", 199 options[ndx].name, params->machine->name); 200 } 201 } 202 if (unsupported_flags & IB_STAGE1START) 203 warnx("`-b bno' is not supported for %s", 204 params->machine->name); 205 if (unsupported_flags & IB_STAGE2START) 206 warnx("`-B bno' is not supported for %s", 207 params->machine->name); 208 unsupported_flags &= ~(IB_STAGE1START | IB_STAGE2START); 209 if (unsupported_flags != 0) 210 warnx("Unknown unsupported flag %#x (coding error!)", 211 unsupported_flags); 212 exit(1); 213 } 214 /* and some illegal combinations */ 215 if (params->flags & IB_STAGE1START && params->flags & IB_APPEND) { 216 warnx("Can't use `-b bno' with `-o append'"); 217 exit(1); 218 } 219 if (params->flags & IB_CLEAR && 220 params->flags & (IB_STAGE1START | IB_STAGE2START | IB_APPEND)) { 221 warnx("Can't use `-b bno', `-B bno' or `-o append' with `-c'"); 222 exit(1); 223 } 224 225 if (argc >= 3) { 226 params->stage2 = argv[2]; 227 } 228 229 params->filesystem = argv[0]; 230 if (params->flags & IB_NOWRITE) { 231 op = "only"; 232 mode = O_RDONLY; 233 } else { 234 op = "write"; 235 mode = O_RDWR; 236 } 237 if ((params->fsfd = open(params->filesystem, mode, 0600)) == -1) 238 err(1, "Opening file system `%s' read-%s", 239 params->filesystem, op); 240 if (fstat(params->fsfd, ¶ms->fsstat) == -1) 241 err(1, "Examining file system `%s'", params->filesystem); 242 if (params->fstype != NULL) { 243 if (! params->fstype->match(params)) 244 errx(1, "File system `%s' is not of type %s", 245 params->filesystem, params->fstype->name); 246 } else { 247 if (params->stage2 != NULL) { 248 params->fstype = &fstypes[0]; 249 while (params->fstype->name != NULL && 250 !params->fstype->match(params)) 251 params->fstype++; 252 if (params->fstype->name == NULL) 253 errx(1, "File system `%s' is of an unknown type", 254 params->filesystem); 255 } 256 } 257 258 if (argc >= 2) { 259 if ((params->s1fd = open(argv[1], O_RDONLY, 0600)) == -1) 260 err(1, "Opening primary bootstrap `%s'", argv[1]); 261 if (fstat(params->s1fd, ¶ms->s1stat) == -1) 262 err(1, "Examining primary bootstrap `%s'", argv[1]); 263 if (!S_ISREG(params->s1stat.st_mode)) 264 errx(1, "`%s' must be a regular file", argv[1]); 265 params->stage1 = argv[1]; 266 } 267 assert(params->machine != NULL); 268 269 if (params->flags & IB_VERBOSE) { 270 printf("File system: %s\n", params->filesystem); 271 if (params->fstype) 272 printf("File system type: %s (blocksize %u, " 273 "needswap %d)\n", 274 params->fstype->name, params->fstype->blocksize, 275 params->fstype->needswap); 276 if (!(params->flags & IB_EDIT)) 277 printf("Primary bootstrap: %s\n", 278 (params->flags & IB_CLEAR) ? "(to be cleared)" 279 : params->stage1 ? params->stage1 : "(none)" ); 280 if (params->stage2 != NULL) 281 printf("Secondary bootstrap: %s\n", params->stage2); 282 } 283 284 if (params->flags & IB_EDIT) { 285 op = "Edit"; 286 rv = params->machine->editboot(params); 287 } else if (params->flags & IB_CLEAR) { 288 op = "Clear"; 289 rv = params->machine->clearboot(params); 290 } else { 291 if (argc < 2) 292 errx(EXIT_FAILURE, "Please specify the primary " 293 "bootstrap file"); 294 op = "Set"; 295 rv = params->machine->setboot(params); 296 } 297 if (rv == 0) 298 errx(1, "%s bootstrap operation failed", op); 299 300 if (S_ISREG(params->fsstat.st_mode)) { 301 if (fsync(params->fsfd) == -1) 302 err(1, "Synchronising file system `%s'", 303 params->filesystem); 304 } else { 305 /* Sync filesystems (to clean in-memory superblock?) */ 306 sync(); 307 } 308 if (close(params->fsfd) == -1) 309 err(1, "Closing file system `%s'", params->filesystem); 310 if (argc == 2) 311 if (close(params->s1fd) == -1) 312 err(1, "Closing primary bootstrap `%s'", 313 params->stage1); 314 315 exit(0); 316 /* NOTREACHED */ 317 } 318 319 static void 320 parseoptions(ib_params *params, const char *option) 321 { 322 char *cp; 323 const struct option *opt; 324 int len; 325 unsigned long val; 326 327 assert(params != NULL); 328 assert(option != NULL); 329 330 for (;; option += len) { 331 option += strspn(option, ", \t"); 332 if (*option == 0) 333 return; 334 len = strcspn(option, "=,"); 335 for (opt = options; opt->name != NULL; opt++) { 336 if (memcmp(option, opt->name, len) == 0 337 && opt->name[len] == 0) 338 break; 339 } 340 if (opt->name == NULL) { 341 len = strcspn(option, ","); 342 warnx("Unknown option `-o %.*s'", len, option); 343 break; 344 } 345 params->flags |= opt->flag; 346 if (opt->type == OPT_BOOL) { 347 if (option[len] != '=') 348 continue; 349 warnx("Option `%s' must not have a value", opt->name); 350 break; 351 } 352 if (option[len] != '=') { 353 warnx("Option `%s' must have a value", opt->name); 354 break; 355 } 356 option += len + 1; 357 len = strcspn(option, ","); 358 switch (opt->type) { 359 case OPT_STRING: 360 len = strlen(option); 361 /* FALLTHROUGH */ 362 case OPT_WORD: 363 cp = strdup(option); 364 if (cp == NULL) 365 err(1, "strdup"); 366 cp[len] = 0; 367 OPTION(params, char *, opt) = cp; 368 continue; 369 case OPT_INT: 370 val = strtoul(option, &cp, 0); 371 if (cp > option + len || (*cp != 0 && *cp != ',')) 372 break; 373 if (val > INT_MAX) 374 break; 375 OPTION(params, int, opt) = (int)val; 376 continue; 377 default: 378 errx(1, "Internal error: option `%s' has invalid type %d", 379 opt->name, opt->type); 380 } 381 warnx("Invalid option value `%s=%.*s'", opt->name, len, option); 382 break; 383 } 384 options_usage(); 385 exit(1); 386 } 387 388 static void 389 options_usage(void) 390 { 391 int ndx; 392 const char *pfx; 393 394 warnx("Valid options are:"); 395 pfx = "\t"; 396 for (ndx = 0; options[ndx].name != 0; ndx++) { 397 fprintf(stderr, "%s%s", pfx, options[ndx].name); 398 switch (options[ndx].type) { 399 case OPT_INT: 400 fprintf(stderr, "=number"); 401 break; 402 case OPT_WORD: 403 fprintf(stderr, "=word"); 404 break; 405 case OPT_STRING: 406 fprintf(stderr, "=string"); 407 break; 408 default: 409 break; 410 } 411 if ((ndx % 5) == 4) 412 pfx = ",\n\t"; 413 else 414 pfx = ", "; 415 } 416 fprintf(stderr, "\n"); 417 } 418 419 int 420 no_setboot(ib_params *params) 421 { 422 423 assert(params != NULL); 424 425 warnx("%s: bootstrap installation is not supported", 426 params->machine->name); 427 return (0); 428 } 429 430 int 431 no_clearboot(ib_params *params) 432 { 433 434 assert(params != NULL); 435 436 warnx("%s: bootstrap removal is not supported", 437 params->machine->name); 438 return (0); 439 } 440 441 int 442 no_editboot(ib_params *params) 443 { 444 445 assert(params != NULL); 446 447 warnx("%s: bootstrap editing is not supported", 448 params->machine->name); 449 return (0); 450 } 451 452 453 static void 454 getmachine(ib_params *param, const char *mach, const char *provider) 455 { 456 int i; 457 458 assert(param != NULL); 459 assert(mach != NULL); 460 assert(provider != NULL); 461 462 for (i = 0; machines[i] != NULL; i++) { 463 if (machines[i]->name == NULL) 464 continue; 465 if (strcmp(machines[i]->name, mach) == 0) { 466 param->machine = machines[i]; 467 return; 468 } 469 } 470 warnx("Invalid machine `%s' from %s", mach, provider); 471 machine_usage(); 472 exit(1); 473 } 474 475 static void 476 machine_usage(void) 477 { 478 const char *prefix; 479 int i; 480 int col, len; 481 const char *name; 482 int wincol=80; 483 #ifdef TIOCGWINSZ 484 struct winsize win; 485 486 if (ioctl(fileno(stderr), TIOCGWINSZ, &win) == 0) 487 wincol = win.ws_col; 488 #endif 489 490 warnx("Supported machines are:"); 491 prefix="\t"; 492 col = 8 + 3; 493 for (i = 0; machines[i] != NULL; i++) { 494 name = machines[i]->name; 495 if (name == NULL) 496 continue; 497 len = strlen(name); 498 if (col + len > wincol) { 499 prefix=",\n\t"; 500 col = -2 + 8 + 3; 501 } 502 col += fprintf(stderr, "%s%s", prefix, name); 503 prefix=", "; 504 } 505 fputs("\n", stderr); 506 } 507 508 static void 509 getfstype(ib_params *param, const char *fstype, const char *provider) 510 { 511 int i; 512 513 assert(param != NULL); 514 assert(fstype != NULL); 515 assert(provider != NULL); 516 517 for (i = 0; fstypes[i].name != NULL; i++) { 518 if (strcmp(fstypes[i].name, fstype) == 0) { 519 param->fstype = &fstypes[i]; 520 return; 521 } 522 } 523 warnx("Invalid file system type `%s' from %s", fstype, provider); 524 fstype_usage(); 525 exit(1); 526 } 527 528 static void 529 fstype_usage(void) 530 { 531 const char *prefix; 532 int i; 533 534 warnx("Supported file system types are:"); 535 #define FSTYPES_PER_LINE 9 536 prefix="\t"; 537 for (i = 0; fstypes[i].name != NULL; i++) { 538 if (i && (i % FSTYPES_PER_LINE) == 0) 539 prefix=",\n\t"; 540 fprintf(stderr, "%s%s", prefix, fstypes[i].name); 541 prefix=", "; 542 } 543 fputs("\n", stderr); 544 } 545 546 static void 547 usage(void) 548 { 549 const char *prog; 550 551 prog = getprogname(); 552 fprintf(stderr, 553 "usage: %s [-fnv] [-B s2bno] [-b s1bno] [-m machine] [-o options]\n" 554 "\t\t [-t fstype] filesystem primary [secondary]\n" 555 "usage: %s -c [-fnv] [-m machine] [-o options] [-t fstype] filesystem\n" 556 "usage: %s -e [-fnv] [-m machine] [-o options] bootstrap\n", 557 prog, prog, prog); 558 machine_usage(); 559 fstype_usage(); 560 options_usage(); 561 exit(1); 562 } 563
Indexes created Thu Sep 25 16:09:42 GMT 2025