1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2007, 2008 Marcel Moolenaar 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include <sys/stat.h> 33 #include <sys/vtoc.h> 34 35 #include <assert.h> 36 #include <ctype.h> 37 #include <err.h> 38 #include <errno.h> 39 #include <fcntl.h> 40 #include <libgeom.h> 41 #include <libutil.h> 42 #include <paths.h> 43 #include <signal.h> 44 #include <stdint.h> 45 #include <stdio.h> 46 #include <stdlib.h> 47 #include <limits.h> 48 #include <inttypes.h> 49 #include <string.h> 50 #include <strings.h> 51 #include <unistd.h> 52 53 #include "core/geom.h" 54 #include "misc/subr.h" 55 56 #ifdef STATIC_GEOM_CLASSES 57 #define PUBSYM(x) gpart_##x 58 #else 59 #define PUBSYM(x) x 60 #endif 61 62 uint32_t PUBSYM(lib_version) = G_LIB_VERSION; 63 uint32_t PUBSYM(version) = 0; 64 65 static char sstart[32]; 66 static char ssize[32]; 67 volatile sig_atomic_t undo_restore; 68 69 #define GPART_AUTOFILL "*" 70 #define GPART_FLAGS "C" 71 72 #define GPART_PARAM_BOOTCODE "bootcode" 73 #define GPART_PARAM_INDEX "index" 74 #define GPART_PARAM_PARTCODE "partcode" 75 #define GPART_PARAM_SKIP_DSN "skip_dsn" 76 77 static struct gclass *find_class(struct gmesh *, const char *); 78 static struct ggeom * find_geom(struct gclass *, const char *); 79 static int geom_is_withered(struct ggeom *); 80 static const char *find_geomcfg(struct ggeom *, const char *); 81 static const char *find_provcfg(struct gprovider *, const char *); 82 static struct gprovider *find_provider(struct ggeom *, off_t); 83 static const char *fmtsize(int64_t); 84 static int gpart_autofill(struct gctl_req *); 85 static int gpart_autofill_resize(struct gctl_req *); 86 static void gpart_bootcode(struct gctl_req *, unsigned int); 87 static void *gpart_bootfile_read(const char *, ssize_t *); 88 static _Noreturn void gpart_issue(struct gctl_req *, unsigned int); 89 static void gpart_show(struct gctl_req *, unsigned int); 90 static void gpart_show_geom(struct ggeom *, const char *, int); 91 static int gpart_show_hasopt(struct gctl_req *, const char *, const char *); 92 static void gpart_write_partcode(struct ggeom *, int, void *, ssize_t); 93 static void gpart_write_partcode_vtoc8(struct ggeom *, int, void *); 94 static void gpart_print_error(const char *); 95 static void gpart_backup(struct gctl_req *, unsigned int); 96 static void gpart_restore(struct gctl_req *, unsigned int); 97 98 struct g_command PUBSYM(class_commands)[] = { 99 { "add", 0, gpart_issue, { 100 { 'a', "alignment", GPART_AUTOFILL, G_TYPE_STRING }, 101 { 'b', "start", GPART_AUTOFILL, G_TYPE_STRING }, 102 { 's', "size", GPART_AUTOFILL, G_TYPE_STRING }, 103 { 't', "type", NULL, G_TYPE_STRING }, 104 { 'i', GPART_PARAM_INDEX, G_VAL_OPTIONAL, G_TYPE_NUMBER }, 105 { 'l', "label", G_VAL_OPTIONAL, G_TYPE_STRING }, 106 { 'f', "flags", GPART_FLAGS, G_TYPE_STRING }, 107 G_OPT_SENTINEL }, 108 "-t type [-a alignment] [-b start] [-s size] [-i index] " 109 "[-l label] [-f flags] geom" 110 }, 111 { "backup", 0, gpart_backup, G_NULL_OPTS, 112 "geom" 113 }, 114 { "bootcode", 0, gpart_bootcode, { 115 { 'b', GPART_PARAM_BOOTCODE, G_VAL_OPTIONAL, G_TYPE_STRING }, 116 { 'p', GPART_PARAM_PARTCODE, G_VAL_OPTIONAL, G_TYPE_STRING }, 117 { 'i', GPART_PARAM_INDEX, G_VAL_OPTIONAL, G_TYPE_NUMBER }, 118 { 'f', "flags", GPART_FLAGS, G_TYPE_STRING }, 119 { 'N', GPART_PARAM_SKIP_DSN, NULL, G_TYPE_BOOL }, 120 G_OPT_SENTINEL }, 121 "[-N] [-b bootcode] [-p partcode -i index] [-f flags] geom" 122 }, 123 { "commit", 0, gpart_issue, G_NULL_OPTS, 124 "geom" 125 }, 126 { "create", 0, gpart_issue, { 127 { 's', "scheme", NULL, G_TYPE_STRING }, 128 { 'n', "entries", G_VAL_OPTIONAL, G_TYPE_NUMBER }, 129 { 'f', "flags", GPART_FLAGS, G_TYPE_STRING }, 130 G_OPT_SENTINEL }, 131 "-s scheme [-n entries] [-f flags] provider" 132 }, 133 { "delete", 0, gpart_issue, { 134 { 'i', GPART_PARAM_INDEX, NULL, G_TYPE_NUMBER }, 135 { 'f', "flags", GPART_FLAGS, G_TYPE_STRING }, 136 G_OPT_SENTINEL }, 137 "-i index [-f flags] geom" 138 }, 139 { "destroy", 0, gpart_issue, { 140 { 'F', "force", NULL, G_TYPE_BOOL }, 141 { 'f', "flags", GPART_FLAGS, G_TYPE_STRING }, 142 G_OPT_SENTINEL }, 143 "[-F] [-f flags] geom" 144 }, 145 { "modify", 0, gpart_issue, { 146 { 'i', GPART_PARAM_INDEX, NULL, G_TYPE_NUMBER }, 147 { 'l', "label", G_VAL_OPTIONAL, G_TYPE_STRING }, 148 { 't', "type", G_VAL_OPTIONAL, G_TYPE_STRING }, 149 { 'f', "flags", GPART_FLAGS, G_TYPE_STRING }, 150 G_OPT_SENTINEL }, 151 "-i index [-l label] [-t type] [-f flags] geom" 152 }, 153 { "set", 0, gpart_issue, { 154 { 'a', "attrib", NULL, G_TYPE_STRING }, 155 { 'i', GPART_PARAM_INDEX, G_VAL_OPTIONAL, G_TYPE_NUMBER }, 156 { 'f', "flags", GPART_FLAGS, G_TYPE_STRING }, 157 G_OPT_SENTINEL }, 158 "-a attrib [-i index] [-f flags] geom" 159 }, 160 { "show", 0, gpart_show, { 161 { 'l', "show_label", NULL, G_TYPE_BOOL }, 162 { 'r', "show_rawtype", NULL, G_TYPE_BOOL }, 163 { 'p', "show_providers", NULL, G_TYPE_BOOL }, 164 G_OPT_SENTINEL }, 165 "[-l | -r] [-p] [geom ...]" 166 }, 167 { "undo", 0, gpart_issue, G_NULL_OPTS, 168 "geom" 169 }, 170 { "unset", 0, gpart_issue, { 171 { 'a', "attrib", NULL, G_TYPE_STRING }, 172 { 'i', GPART_PARAM_INDEX, G_VAL_OPTIONAL, G_TYPE_NUMBER }, 173 { 'f', "flags", GPART_FLAGS, G_TYPE_STRING }, 174 G_OPT_SENTINEL }, 175 "-a attrib [-i index] [-f flags] geom" 176 }, 177 { "resize", 0, gpart_issue, { 178 { 'a', "alignment", GPART_AUTOFILL, G_TYPE_STRING }, 179 { 's', "size", GPART_AUTOFILL, G_TYPE_STRING }, 180 { 'i', GPART_PARAM_INDEX, NULL, G_TYPE_NUMBER }, 181 { 'f', "flags", GPART_FLAGS, G_TYPE_STRING }, 182 G_OPT_SENTINEL }, 183 "-i index [-a alignment] [-s size] [-f flags] geom" 184 }, 185 { "restore", 0, gpart_restore, { 186 { 'F', "force", NULL, G_TYPE_BOOL }, 187 { 'l', "restore_labels", NULL, G_TYPE_BOOL }, 188 { 'f', "flags", GPART_FLAGS, G_TYPE_STRING }, 189 G_OPT_SENTINEL }, 190 "[-lF] [-f flags] provider [...]" 191 }, 192 { "recover", 0, gpart_issue, { 193 { 'f', "flags", GPART_FLAGS, G_TYPE_STRING }, 194 G_OPT_SENTINEL }, 195 "[-f flags] geom" 196 }, 197 G_CMD_SENTINEL 198 }; 199 200 static struct gclass * 201 find_class(struct gmesh *mesh, const char *name) 202 { 203 struct gclass *classp; 204 205 LIST_FOREACH(classp, &mesh->lg_class, lg_class) { 206 if (strcmp(classp->lg_name, name) == 0) 207 return (classp); 208 } 209 return (NULL); 210 } 211 212 static struct ggeom * 213 find_geom(struct gclass *classp, const char *name) 214 { 215 struct ggeom *gp, *wgp; 216 217 if (strncmp(name, _PATH_DEV, sizeof(_PATH_DEV) - 1) == 0) 218 name += sizeof(_PATH_DEV) - 1; 219 wgp = NULL; 220 LIST_FOREACH(gp, &classp->lg_geom, lg_geom) { 221 if (strcmp(gp->lg_name, name) != 0) 222 continue; 223 if (!geom_is_withered(gp)) 224 return (gp); 225 else 226 wgp = gp; 227 } 228 return (wgp); 229 } 230 231 static int 232 geom_is_withered(struct ggeom *gp) 233 { 234 struct gconfig *gc; 235 236 LIST_FOREACH(gc, &gp->lg_config, lg_config) { 237 if (!strcmp(gc->lg_name, "wither")) 238 return (1); 239 } 240 return (0); 241 } 242 243 static const char * 244 find_geomcfg(struct ggeom *gp, const char *cfg) 245 { 246 struct gconfig *gc; 247 248 LIST_FOREACH(gc, &gp->lg_config, lg_config) { 249 if (!strcmp(gc->lg_name, cfg)) 250 return (gc->lg_val); 251 } 252 return (NULL); 253 } 254 255 static const char * 256 find_provcfg(struct gprovider *pp, const char *cfg) 257 { 258 struct gconfig *gc; 259 260 LIST_FOREACH(gc, &pp->lg_config, lg_config) { 261 if (!strcmp(gc->lg_name, cfg)) 262 return (gc->lg_val); 263 } 264 return (NULL); 265 } 266 267 static struct gprovider * 268 find_provider(struct ggeom *gp, off_t minsector) 269 { 270 struct gprovider *pp, *bestpp; 271 const char *s; 272 off_t sector, bestsector; 273 274 bestpp = NULL; 275 bestsector = 0; 276 LIST_FOREACH(pp, &gp->lg_provider, lg_provider) { 277 s = find_provcfg(pp, "start"); 278 sector = (off_t)strtoimax(s, NULL, 0); 279 if (sector < minsector) 280 continue; 281 if (bestpp != NULL && sector >= bestsector) 282 continue; 283 284 bestpp = pp; 285 bestsector = sector; 286 } 287 return (bestpp); 288 } 289 290 static const char * 291 fmtsize(int64_t rawsz) 292 { 293 static char buf[5]; 294 295 humanize_number(buf, sizeof(buf), rawsz, "", HN_AUTOSCALE, 296 HN_B | HN_NOSPACE | HN_DECIMAL); 297 return (buf); 298 } 299 300 static const char * 301 fmtattrib(struct gprovider *pp) 302 { 303 static char buf[128]; 304 struct gconfig *gc; 305 u_int idx; 306 307 buf[0] = '\0'; 308 idx = 0; 309 LIST_FOREACH(gc, &pp->lg_config, lg_config) { 310 if (strcmp(gc->lg_name, "attrib") != 0) 311 continue; 312 idx += snprintf(buf + idx, sizeof(buf) - idx, "%s%s", 313 (idx == 0) ? " [" : ",", gc->lg_val); 314 } 315 if (idx > 0) 316 snprintf(buf + idx, sizeof(buf) - idx, "] "); 317 return (buf); 318 } 319 320 #define ALIGNDOWN(d, a) ((d) - (d) % (a)) 321 #define ALIGNUP(d, a) ((d) % (a) ? (d) - (d) % (a) + (a): (d)) 322 323 static int 324 gpart_autofill_resize(struct gctl_req *req) 325 { 326 struct gmesh mesh; 327 struct gclass *cp; 328 struct ggeom *gp; 329 struct gprovider *pp; 330 off_t last, size, start, new_size; 331 off_t lba, new_lba, alignment, offset; 332 const char *s; 333 int error, idx, has_alignment; 334 335 idx = (int)gctl_get_intmax(req, GPART_PARAM_INDEX); 336 if (idx < 1) 337 errx(EXIT_FAILURE, "invalid partition index"); 338 339 error = geom_gettree(&mesh); 340 if (error) 341 return (error); 342 s = gctl_get_ascii(req, "class"); 343 if (s == NULL) 344 abort(); 345 cp = find_class(&mesh, s); 346 if (cp == NULL) 347 errx(EXIT_FAILURE, "Class %s not found.", s); 348 s = gctl_get_ascii(req, "arg0"); 349 if (s == NULL) 350 abort(); 351 gp = find_geom(cp, s); 352 if (gp == NULL) 353 errx(EXIT_FAILURE, "No such geom: %s.", s); 354 pp = LIST_FIRST(&gp->lg_consumer)->lg_provider; 355 if (pp == NULL) 356 errx(EXIT_FAILURE, "Provider for geom %s not found.", s); 357 358 s = gctl_get_ascii(req, "alignment"); 359 has_alignment = (*s == '*') ? 0 : 1; 360 alignment = 1; 361 if (has_alignment) { 362 error = g_parse_lba(s, pp->lg_sectorsize, &alignment); 363 if (error) 364 errc(EXIT_FAILURE, error, "Invalid alignment param"); 365 if (alignment == 0) 366 errx(EXIT_FAILURE, "Invalid alignment param"); 367 } else { 368 lba = pp->lg_stripesize / pp->lg_sectorsize; 369 if (lba > 0) 370 alignment = lba; 371 } 372 error = gctl_delete_param(req, "alignment"); 373 if (error) 374 errc(EXIT_FAILURE, error, "internal error"); 375 376 s = gctl_get_ascii(req, "size"); 377 if (*s == '*') 378 new_size = 0; 379 else { 380 error = g_parse_lba(s, pp->lg_sectorsize, &new_size); 381 if (error) 382 errc(EXIT_FAILURE, error, "Invalid size param"); 383 /* no autofill necessary. */ 384 if (has_alignment == 0) 385 goto done; 386 } 387 388 offset = (pp->lg_stripeoffset / pp->lg_sectorsize) % alignment; 389 s = find_geomcfg(gp, "last"); 390 if (s == NULL) 391 errx(EXIT_FAILURE, "Final block not found for geom %s", 392 gp->lg_name); 393 last = (off_t)strtoimax(s, NULL, 0); 394 LIST_FOREACH(pp, &gp->lg_provider, lg_provider) { 395 s = find_provcfg(pp, "index"); 396 if (s == NULL) 397 continue; 398 if (atoi(s) == idx) 399 break; 400 } 401 if (pp == NULL) 402 errx(EXIT_FAILURE, "invalid partition index"); 403 404 s = find_provcfg(pp, "start"); 405 start = (off_t)strtoimax(s, NULL, 0); 406 s = find_provcfg(pp, "end"); 407 lba = (off_t)strtoimax(s, NULL, 0); 408 size = lba - start + 1; 409 410 pp = find_provider(gp, lba + 1); 411 if (new_size > 0 && (new_size <= size || pp == NULL)) { 412 /* The start offset may be not aligned, so we align the end 413 * offset and then calculate the size. 414 */ 415 new_size = ALIGNDOWN(start + offset + new_size, 416 alignment) - start - offset; 417 goto done; 418 } 419 if (pp == NULL) { 420 new_size = ALIGNDOWN(last + offset + 1, alignment) - 421 start - offset; 422 if (new_size < size) 423 return (ENOSPC); 424 } else { 425 s = find_provcfg(pp, "start"); 426 new_lba = (off_t)strtoimax(s, NULL, 0); 427 /* 428 * Is there any free space between current and 429 * next providers? 430 */ 431 new_lba = ALIGNDOWN(new_lba + offset, alignment) - offset; 432 if (new_lba > lba) 433 new_size = new_lba - start; 434 else { 435 geom_deletetree(&mesh); 436 return (ENOSPC); 437 } 438 } 439 done: 440 snprintf(ssize, sizeof(ssize), "%jd", (intmax_t)new_size); 441 gctl_change_param(req, "size", -1, ssize); 442 geom_deletetree(&mesh); 443 return (0); 444 } 445 446 static int 447 gpart_autofill(struct gctl_req *req) 448 { 449 struct gmesh mesh; 450 struct gclass *cp; 451 struct ggeom *gp; 452 struct gprovider *pp; 453 off_t first, last, a_first; 454 off_t size, start, a_lba; 455 off_t lba, len, alignment, offset; 456 uintmax_t grade; 457 const char *s; 458 int error, has_size, has_start, has_alignment; 459 460 s = gctl_get_ascii(req, "verb"); 461 if (strcmp(s, "resize") == 0) 462 return gpart_autofill_resize(req); 463 if (strcmp(s, "add") != 0) 464 return (0); 465 466 error = geom_gettree(&mesh); 467 if (error) 468 return (error); 469 s = gctl_get_ascii(req, "class"); 470 if (s == NULL) 471 abort(); 472 cp = find_class(&mesh, s); 473 if (cp == NULL) 474 errx(EXIT_FAILURE, "Class %s not found.", s); 475 s = gctl_get_ascii(req, "arg0"); 476 if (s == NULL) 477 abort(); 478 gp = find_geom(cp, s); 479 if (gp == NULL) { 480 if (g_device_path(s) == NULL) { 481 errx(EXIT_FAILURE, "No such geom %s.", s); 482 } else { 483 /* 484 * We don't free memory allocated by g_device_path() as 485 * we are about to exit. 486 */ 487 errx(EXIT_FAILURE, 488 "No partitioning scheme found on geom %s. Create one first using 'gpart create'.", 489 s); 490 } 491 } 492 pp = LIST_FIRST(&gp->lg_consumer)->lg_provider; 493 if (pp == NULL) 494 errx(EXIT_FAILURE, "Provider for geom %s not found.", s); 495 496 s = gctl_get_ascii(req, "alignment"); 497 has_alignment = (*s == '*') ? 0 : 1; 498 alignment = 1; 499 if (has_alignment) { 500 error = g_parse_lba(s, pp->lg_sectorsize, &alignment); 501 if (error) 502 errc(EXIT_FAILURE, error, "Invalid alignment param"); 503 if (alignment == 0) 504 errx(EXIT_FAILURE, "Invalid alignment param"); 505 } 506 error = gctl_delete_param(req, "alignment"); 507 if (error) 508 errc(EXIT_FAILURE, error, "internal error"); 509 510 s = gctl_get_ascii(req, "size"); 511 has_size = (*s == '*') ? 0 : 1; 512 size = 0; 513 if (has_size) { 514 error = g_parse_lba(s, pp->lg_sectorsize, &size); 515 if (error) 516 errc(EXIT_FAILURE, error, "Invalid size param"); 517 } 518 519 s = gctl_get_ascii(req, "start"); 520 has_start = (*s == '*') ? 0 : 1; 521 start = 0ULL; 522 if (has_start) { 523 error = g_parse_lba(s, pp->lg_sectorsize, &start); 524 if (error) 525 errc(EXIT_FAILURE, error, "Invalid start param"); 526 } 527 528 /* No autofill necessary. */ 529 if (has_size && has_start && !has_alignment) 530 goto done; 531 532 len = pp->lg_stripesize / pp->lg_sectorsize; 533 if (len > 0 && !has_alignment) 534 alignment = len; 535 536 /* Adjust parameters to stripeoffset */ 537 offset = (pp->lg_stripeoffset / pp->lg_sectorsize) % alignment; 538 start = ALIGNUP(start + offset, alignment); 539 if (size > alignment) 540 size = ALIGNDOWN(size, alignment); 541 542 s = find_geomcfg(gp, "first"); 543 if (s == NULL) 544 errx(EXIT_FAILURE, "Starting block not found for geom %s", 545 gp->lg_name); 546 first = (off_t)strtoimax(s, NULL, 0); 547 s = find_geomcfg(gp, "last"); 548 if (s == NULL) 549 errx(EXIT_FAILURE, "Final block not found for geom %s", 550 gp->lg_name); 551 last = (off_t)strtoimax(s, NULL, 0); 552 grade = ~0ULL; 553 a_first = ALIGNUP(first + offset, alignment); 554 last = ALIGNDOWN(last + offset + 1, alignment) - 1; 555 if (a_first < start) 556 a_first = start; 557 while ((pp = find_provider(gp, first)) != NULL) { 558 s = find_provcfg(pp, "start"); 559 lba = (off_t)strtoimax(s, NULL, 0); 560 a_lba = ALIGNDOWN(lba + offset, alignment); 561 if (first < a_lba && a_first < a_lba) { 562 /* Free space [first, lba> */ 563 len = a_lba - a_first; 564 if (has_size) { 565 if (len >= size && 566 (uintmax_t)(len - size) < grade) { 567 start = a_first; 568 grade = len - size; 569 } 570 } else if (has_start) { 571 if (start >= a_first && start < a_lba) { 572 size = a_lba - start; 573 grade = start - a_first; 574 } 575 } else { 576 if (grade == ~0ULL || len > size) { 577 start = a_first; 578 size = len; 579 grade = 0; 580 } 581 } 582 } 583 584 s = find_provcfg(pp, "end"); 585 first = (off_t)strtoimax(s, NULL, 0) + 1; 586 if (first + offset > a_first) 587 a_first = ALIGNUP(first + offset, alignment); 588 } 589 if (a_first <= last) { 590 /* Free space [first-last] */ 591 len = ALIGNDOWN(last - a_first + 1, alignment); 592 if (has_size) { 593 if (len >= size && 594 (uintmax_t)(len - size) < grade) { 595 start = a_first; 596 grade = len - size; 597 } 598 } else if (has_start) { 599 if (start >= a_first && start <= last) { 600 size = ALIGNDOWN(last - start + 1, alignment); 601 grade = start - a_first; 602 } 603 } else { 604 if (grade == ~0ULL || len > size) { 605 start = a_first; 606 size = len; 607 grade = 0; 608 } 609 } 610 } 611 if (grade == ~0ULL) { 612 geom_deletetree(&mesh); 613 return (ENOSPC); 614 } 615 start -= offset; /* Return back to real offset */ 616 done: 617 snprintf(ssize, sizeof(ssize), "%jd", (intmax_t)size); 618 gctl_change_param(req, "size", -1, ssize); 619 snprintf(sstart, sizeof(sstart), "%jd", (intmax_t)start); 620 gctl_change_param(req, "start", -1, sstart); 621 geom_deletetree(&mesh); 622 return (0); 623 } 624 625 static void 626 gpart_show_geom(struct ggeom *gp, const char *element, int show_providers) 627 { 628 struct gprovider *pp; 629 const char *s, *scheme; 630 off_t first, last, sector, end; 631 off_t length, secsz; 632 int idx, wblocks, wname, wmax; 633 634 if (geom_is_withered(gp)) 635 return; 636 scheme = find_geomcfg(gp, "scheme"); 637 if (scheme == NULL) 638 errx(EXIT_FAILURE, "Scheme not found for geom %s", gp->lg_name); 639 s = find_geomcfg(gp, "first"); 640 if (s == NULL) 641 errx(EXIT_FAILURE, "Starting block not found for geom %s", 642 gp->lg_name); 643 first = (off_t)strtoimax(s, NULL, 0); 644 s = find_geomcfg(gp, "last"); 645 if (s == NULL) 646 errx(EXIT_FAILURE, "Final block not found for geom %s", 647 gp->lg_name); 648 last = (off_t)strtoimax(s, NULL, 0); 649 wblocks = strlen(s); 650 s = find_geomcfg(gp, "state"); 651 if (s == NULL) 652 errx(EXIT_FAILURE, "State not found for geom %s", gp->lg_name); 653 if (s != NULL && *s != 'C') 654 s = NULL; 655 wmax = strlen(gp->lg_name); 656 if (show_providers) { 657 LIST_FOREACH(pp, &gp->lg_provider, lg_provider) { 658 wname = strlen(pp->lg_name); 659 if (wname > wmax) 660 wmax = wname; 661 } 662 } 663 wname = wmax; 664 pp = LIST_FIRST(&gp->lg_consumer)->lg_provider; 665 secsz = pp->lg_sectorsize; 666 printf("=>%*jd %*jd %*s %s (%s)%s\n", 667 wblocks, (intmax_t)first, wblocks, (intmax_t)(last - first + 1), 668 wname, gp->lg_name, 669 scheme, fmtsize(pp->lg_mediasize), 670 s ? " [CORRUPT]": ""); 671 672 while ((pp = find_provider(gp, first)) != NULL) { 673 s = find_provcfg(pp, "start"); 674 sector = (off_t)strtoimax(s, NULL, 0); 675 676 s = find_provcfg(pp, "end"); 677 end = (off_t)strtoimax(s, NULL, 0); 678 length = end - sector + 1; 679 680 s = find_provcfg(pp, "index"); 681 idx = atoi(s); 682 if (first < sector) { 683 printf(" %*jd %*jd %*s - free - (%s)\n", 684 wblocks, (intmax_t)first, wblocks, 685 (intmax_t)(sector - first), wname, "", 686 fmtsize((sector - first) * secsz)); 687 } 688 if (show_providers) { 689 printf(" %*jd %*jd %*s %s %s (%s)\n", 690 wblocks, (intmax_t)sector, wblocks, 691 (intmax_t)length, wname, pp->lg_name, 692 find_provcfg(pp, element), fmtattrib(pp), 693 fmtsize(pp->lg_mediasize)); 694 } else 695 printf(" %*jd %*jd %*d %s %s (%s)\n", 696 wblocks, (intmax_t)sector, wblocks, 697 (intmax_t)length, wname, idx, 698 find_provcfg(pp, element), fmtattrib(pp), 699 fmtsize(pp->lg_mediasize)); 700 first = end + 1; 701 } 702 if (first <= last) { 703 length = last - first + 1; 704 printf(" %*jd %*jd %*s - free - (%s)\n", 705 wblocks, (intmax_t)first, wblocks, (intmax_t)length, 706 wname, "", 707 fmtsize(length * secsz)); 708 } 709 printf("\n"); 710 } 711 712 static int 713 gpart_show_hasopt(struct gctl_req *req, const char *opt, const char *elt) 714 { 715 716 if (!gctl_get_int(req, "%s", opt)) 717 return (0); 718 719 if (elt != NULL) 720 errx(EXIT_FAILURE, "-l and -r are mutually exclusive"); 721 722 return (1); 723 } 724 725 static void 726 gpart_show(struct gctl_req *req, unsigned int fl __unused) 727 { 728 struct gmesh mesh; 729 struct gclass *classp; 730 struct ggeom *gp; 731 const char *element, *name; 732 int error, i, nargs, show_providers; 733 734 element = NULL; 735 if (gpart_show_hasopt(req, "show_label", element)) 736 element = "label"; 737 if (gpart_show_hasopt(req, "show_rawtype", element)) 738 element = "rawtype"; 739 if (element == NULL) 740 element = "type"; 741 742 name = gctl_get_ascii(req, "class"); 743 if (name == NULL) 744 abort(); 745 error = geom_gettree(&mesh); 746 if (error != 0) 747 errc(EXIT_FAILURE, error, "Cannot get GEOM tree"); 748 classp = find_class(&mesh, name); 749 if (classp == NULL) { 750 geom_deletetree(&mesh); 751 errx(EXIT_FAILURE, "Class %s not found.", name); 752 } 753 show_providers = gctl_get_int(req, "show_providers"); 754 nargs = gctl_get_int(req, "nargs"); 755 if (nargs > 0) { 756 for (i = 0; i < nargs; i++) { 757 name = gctl_get_ascii(req, "arg%d", i); 758 gp = find_geom(classp, name); 759 if (gp != NULL) 760 gpart_show_geom(gp, element, show_providers); 761 else 762 errx(EXIT_FAILURE, "No such geom: %s.", name); 763 } 764 } else { 765 LIST_FOREACH(gp, &classp->lg_geom, lg_geom) { 766 gpart_show_geom(gp, element, show_providers); 767 } 768 } 769 geom_deletetree(&mesh); 770 } 771 772 static void 773 gpart_backup(struct gctl_req *req, unsigned int fl __unused) 774 { 775 struct gmesh mesh; 776 struct gclass *classp; 777 struct gprovider *pp; 778 struct ggeom *gp; 779 const char *s, *scheme; 780 off_t sector, end; 781 off_t length; 782 int error, i, windex, wblocks, wtype; 783 784 if (gctl_get_int(req, "nargs") != 1) 785 errx(EXIT_FAILURE, "Invalid number of arguments."); 786 error = geom_gettree(&mesh); 787 if (error != 0) 788 errc(EXIT_FAILURE, error, "Cannot get GEOM tree"); 789 s = gctl_get_ascii(req, "class"); 790 if (s == NULL) 791 abort(); 792 classp = find_class(&mesh, s); 793 if (classp == NULL) { 794 geom_deletetree(&mesh); 795 errx(EXIT_FAILURE, "Class %s not found.", s); 796 } 797 s = gctl_get_ascii(req, "arg0"); 798 if (s == NULL) 799 abort(); 800 gp = find_geom(classp, s); 801 if (gp == NULL) 802 errx(EXIT_FAILURE, "No such geom: %s.", s); 803 scheme = find_geomcfg(gp, "scheme"); 804 if (scheme == NULL) 805 abort(); 806 pp = LIST_FIRST(&gp->lg_consumer)->lg_provider; 807 s = find_geomcfg(gp, "last"); 808 if (s == NULL) 809 abort(); 810 wblocks = strlen(s); 811 wtype = 0; 812 LIST_FOREACH(pp, &gp->lg_provider, lg_provider) { 813 s = find_provcfg(pp, "type"); 814 i = strlen(s); 815 if (i > wtype) 816 wtype = i; 817 } 818 s = find_geomcfg(gp, "entries"); 819 if (s == NULL) 820 abort(); 821 windex = strlen(s); 822 printf("%s %s\n", scheme, s); 823 LIST_FOREACH(pp, &gp->lg_provider, lg_provider) { 824 s = find_provcfg(pp, "start"); 825 sector = (off_t)strtoimax(s, NULL, 0); 826 827 s = find_provcfg(pp, "end"); 828 end = (off_t)strtoimax(s, NULL, 0); 829 length = end - sector + 1; 830 831 s = find_provcfg(pp, "label"); 832 printf("%-*s %*s %*jd %*jd %s %s\n", 833 windex, find_provcfg(pp, "index"), 834 wtype, find_provcfg(pp, "type"), 835 wblocks, (intmax_t)sector, 836 wblocks, (intmax_t)length, 837 (s != NULL) ? s: "", fmtattrib(pp)); 838 } 839 geom_deletetree(&mesh); 840 } 841 842 static int 843 skip_line(const char *p) 844 { 845 846 while (*p != '\0') { 847 if (*p == '#') 848 return (1); 849 if (isspace(*p) == 0) 850 return (0); 851 p++; 852 } 853 return (1); 854 } 855 856 static void 857 gpart_sighndl(int sig __unused) 858 { 859 undo_restore = 1; 860 } 861 862 static void 863 gpart_restore(struct gctl_req *req, unsigned int fl __unused) 864 { 865 struct gmesh mesh; 866 struct gclass *classp; 867 struct gctl_req *r; 868 struct ggeom *gp; 869 struct sigaction si_sa; 870 const char *s, *flags, *errstr, *label; 871 char **ap, *argv[6], line[BUFSIZ], *pline; 872 int error, forced, i, l, nargs, created, rl; 873 intmax_t n; 874 875 nargs = gctl_get_int(req, "nargs"); 876 if (nargs < 1) 877 errx(EXIT_FAILURE, "Invalid number of arguments."); 878 879 forced = gctl_get_int(req, "force"); 880 flags = gctl_get_ascii(req, "flags"); 881 rl = gctl_get_int(req, "restore_labels"); 882 s = gctl_get_ascii(req, "class"); 883 if (s == NULL) 884 abort(); 885 error = geom_gettree(&mesh); 886 if (error != 0) 887 errc(EXIT_FAILURE, error, "Cannot get GEOM tree"); 888 classp = find_class(&mesh, s); 889 if (classp == NULL) { 890 geom_deletetree(&mesh); 891 errx(EXIT_FAILURE, "Class %s not found.", s); 892 } 893 894 sigemptyset(&si_sa.sa_mask); 895 si_sa.sa_flags = 0; 896 si_sa.sa_handler = gpart_sighndl; 897 if (sigaction(SIGINT, &si_sa, 0) == -1) 898 err(EXIT_FAILURE, "sigaction SIGINT"); 899 900 if (forced) { 901 /* destroy existent partition table before restore */ 902 for (i = 0; i < nargs; i++) { 903 s = gctl_get_ascii(req, "arg%d", i); 904 gp = find_geom(classp, s); 905 if (gp != NULL) { 906 r = gctl_get_handle(); 907 gctl_ro_param(r, "class", -1, 908 classp->lg_name); 909 gctl_ro_param(r, "verb", -1, "destroy"); 910 gctl_ro_param(r, "flags", -1, "restore"); 911 gctl_ro_param(r, "force", sizeof(forced), 912 &forced); 913 gctl_ro_param(r, "arg0", -1, s); 914 errstr = gctl_issue(r); 915 if (errstr != NULL && errstr[0] != '\0') { 916 gpart_print_error(errstr); 917 gctl_free(r); 918 goto backout; 919 } 920 gctl_free(r); 921 } 922 } 923 } 924 created = 0; 925 while (undo_restore == 0 && 926 fgets(line, sizeof(line) - 1, stdin) != NULL) { 927 /* Format of backup entries: 928 * <scheme name> <number of entries> 929 * <index> <type> <start> <size> [label] ['['attrib[,attrib]']'] 930 */ 931 pline = (char *)line; 932 pline[strlen(line) - 1] = 0; 933 if (skip_line(pline)) 934 continue; 935 for (ap = argv; 936 (*ap = strsep(&pline, " \t")) != NULL;) 937 if (**ap != '\0' && ++ap >= &argv[6]) 938 break; 939 l = ap - &argv[0]; 940 label = pline = NULL; 941 if (l == 1 || l == 2) { /* create table */ 942 if (created) 943 errx(EXIT_FAILURE, "Incorrect backup format."); 944 if (l == 2) 945 n = strtoimax(argv[1], NULL, 0); 946 for (i = 0; i < nargs; i++) { 947 s = gctl_get_ascii(req, "arg%d", i); 948 r = gctl_get_handle(); 949 gctl_ro_param(r, "class", -1, 950 classp->lg_name); 951 gctl_ro_param(r, "verb", -1, "create"); 952 gctl_ro_param(r, "scheme", -1, argv[0]); 953 if (l == 2) 954 gctl_ro_param(r, "entries", 955 sizeof(n), &n); 956 gctl_ro_param(r, "flags", -1, "restore"); 957 gctl_ro_param(r, "arg0", -1, s); 958 errstr = gctl_issue(r); 959 if (errstr != NULL && errstr[0] != '\0') { 960 gpart_print_error(errstr); 961 gctl_free(r); 962 goto backout; 963 } 964 gctl_free(r); 965 } 966 created = 1; 967 continue; 968 } else if (l < 4 || created == 0) 969 errx(EXIT_FAILURE, "Incorrect backup format."); 970 else if (l == 5) { 971 if (strchr(argv[4], '[') == NULL) 972 label = argv[4]; 973 else 974 pline = argv[4]; 975 } else if (l == 6) { 976 label = argv[4]; 977 pline = argv[5]; 978 } 979 /* Add partitions to each table */ 980 for (i = 0; i < nargs; i++) { 981 s = gctl_get_ascii(req, "arg%d", i); 982 r = gctl_get_handle(); 983 n = strtoimax(argv[0], NULL, 0); 984 gctl_ro_param(r, "class", -1, classp->lg_name); 985 gctl_ro_param(r, "verb", -1, "add"); 986 gctl_ro_param(r, "flags", -1, "restore"); 987 gctl_ro_param(r, GPART_PARAM_INDEX, sizeof(n), &n); 988 gctl_ro_param(r, "type", -1, argv[1]); 989 gctl_ro_param(r, "start", -1, argv[2]); 990 gctl_ro_param(r, "size", -1, argv[3]); 991 if (rl != 0 && label != NULL) 992 gctl_ro_param(r, "label", -1, argv[4]); 993 gctl_ro_param(r, "alignment", -1, GPART_AUTOFILL); 994 gctl_ro_param(r, "arg0", -1, s); 995 error = gpart_autofill(r); 996 if (error != 0) 997 errc(EXIT_FAILURE, error, "autofill"); 998 errstr = gctl_issue(r); 999 if (errstr != NULL && errstr[0] != '\0') { 1000 gpart_print_error(errstr); 1001 gctl_free(r); 1002 goto backout; 1003 } 1004 gctl_free(r); 1005 } 1006 if (pline == NULL || *pline != '[') 1007 continue; 1008 /* set attributes */ 1009 pline++; 1010 for (ap = argv; 1011 (*ap = strsep(&pline, ",]")) != NULL;) 1012 if (**ap != '\0' && ++ap >= &argv[6]) 1013 break; 1014 for (i = 0; i < nargs; i++) { 1015 l = ap - &argv[0]; 1016 s = gctl_get_ascii(req, "arg%d", i); 1017 while (l > 0) { 1018 r = gctl_get_handle(); 1019 gctl_ro_param(r, "class", -1, classp->lg_name); 1020 gctl_ro_param(r, "verb", -1, "set"); 1021 gctl_ro_param(r, "flags", -1, "restore"); 1022 gctl_ro_param(r, GPART_PARAM_INDEX, 1023 sizeof(n), &n); 1024 gctl_ro_param(r, "attrib", -1, argv[--l]); 1025 gctl_ro_param(r, "arg0", -1, s); 1026 errstr = gctl_issue(r); 1027 if (errstr != NULL && errstr[0] != '\0') { 1028 gpart_print_error(errstr); 1029 gctl_free(r); 1030 goto backout; 1031 } 1032 gctl_free(r); 1033 } 1034 } 1035 } 1036 if (undo_restore) 1037 goto backout; 1038 /* commit changes if needed */ 1039 if (strchr(flags, 'C') != NULL) { 1040 for (i = 0; i < nargs; i++) { 1041 s = gctl_get_ascii(req, "arg%d", i); 1042 r = gctl_get_handle(); 1043 gctl_ro_param(r, "class", -1, classp->lg_name); 1044 gctl_ro_param(r, "verb", -1, "commit"); 1045 gctl_ro_param(r, "arg0", -1, s); 1046 errstr = gctl_issue(r); 1047 if (errstr != NULL && errstr[0] != '\0') { 1048 gpart_print_error(errstr); 1049 gctl_free(r); 1050 goto backout; 1051 } 1052 gctl_free(r); 1053 } 1054 } 1055 gctl_free(req); 1056 geom_deletetree(&mesh); 1057 exit(EXIT_SUCCESS); 1058 1059 backout: 1060 for (i = 0; i < nargs; i++) { 1061 s = gctl_get_ascii(req, "arg%d", i); 1062 r = gctl_get_handle(); 1063 gctl_ro_param(r, "class", -1, classp->lg_name); 1064 gctl_ro_param(r, "verb", -1, "undo"); 1065 gctl_ro_param(r, "arg0", -1, s); 1066 gctl_issue(r); 1067 gctl_free(r); 1068 } 1069 gctl_free(req); 1070 geom_deletetree(&mesh); 1071 exit(EXIT_FAILURE); 1072 } 1073 1074 static void * 1075 gpart_bootfile_read(const char *bootfile, ssize_t *size) 1076 { 1077 struct stat sb; 1078 void *code; 1079 int fd; 1080 1081 if (stat(bootfile, &sb) == -1) 1082 err(EXIT_FAILURE, "%s", bootfile); 1083 if (!S_ISREG(sb.st_mode)) 1084 errx(EXIT_FAILURE, "%s: not a regular file", bootfile); 1085 if (sb.st_size == 0) 1086 errx(EXIT_FAILURE, "%s: empty file", bootfile); 1087 if (*size > 0 && sb.st_size > *size) 1088 errx(EXIT_FAILURE, "%s: file too big (%zu limit)", bootfile, 1089 *size); 1090 1091 *size = sb.st_size; 1092 1093 fd = open(bootfile, O_RDONLY); 1094 if (fd == -1) 1095 err(EXIT_FAILURE, "%s", bootfile); 1096 code = malloc(*size); 1097 if (code == NULL) 1098 err(EXIT_FAILURE, NULL); 1099 if (read(fd, code, *size) != *size) 1100 err(EXIT_FAILURE, "%s", bootfile); 1101 close(fd); 1102 1103 return (code); 1104 } 1105 1106 static void 1107 gpart_write_partcode(struct ggeom *gp, int idx, void *code, ssize_t size) 1108 { 1109 char dsf[128]; 1110 struct gprovider *pp; 1111 const char *s; 1112 char *buf; 1113 off_t bsize; 1114 int fd; 1115 1116 LIST_FOREACH(pp, &gp->lg_provider, lg_provider) { 1117 s = find_provcfg(pp, "index"); 1118 if (s == NULL) 1119 continue; 1120 if (atoi(s) == idx) 1121 break; 1122 } 1123 1124 if (pp != NULL) { 1125 snprintf(dsf, sizeof(dsf), "/dev/%s", pp->lg_name); 1126 if (pp->lg_mediasize < size) 1127 errx(EXIT_FAILURE, "%s: not enough space", dsf); 1128 fd = open(dsf, O_WRONLY); 1129 if (fd == -1) 1130 err(EXIT_FAILURE, "%s", dsf); 1131 /* 1132 * When writing to a disk device, the write must be 1133 * sector aligned and not write to any partial sectors, 1134 * so round up the buffer size to the next sector and zero it. 1135 */ 1136 bsize = (size + pp->lg_sectorsize - 1) / 1137 pp->lg_sectorsize * pp->lg_sectorsize; 1138 buf = calloc(1, bsize); 1139 if (buf == NULL) 1140 err(EXIT_FAILURE, "%s", dsf); 1141 bcopy(code, buf, size); 1142 if (write(fd, buf, bsize) != bsize) 1143 err(EXIT_FAILURE, "%s", dsf); 1144 free(buf); 1145 close(fd); 1146 printf("partcode written to %s\n", pp->lg_name); 1147 } else 1148 errx(EXIT_FAILURE, "invalid partition index"); 1149 } 1150 1151 static void 1152 gpart_write_partcode_vtoc8(struct ggeom *gp, int idx, void *code) 1153 { 1154 char dsf[128]; 1155 struct gprovider *pp; 1156 const char *s; 1157 int installed, fd; 1158 1159 installed = 0; 1160 LIST_FOREACH(pp, &gp->lg_provider, lg_provider) { 1161 s = find_provcfg(pp, "index"); 1162 if (s == NULL) 1163 continue; 1164 if (idx != 0 && atoi(s) != idx) 1165 continue; 1166 snprintf(dsf, sizeof(dsf), "/dev/%s", pp->lg_name); 1167 if (pp->lg_sectorsize != sizeof(struct vtoc8)) 1168 errx(EXIT_FAILURE, "%s: unexpected sector " 1169 "size (%d)\n", dsf, pp->lg_sectorsize); 1170 if (pp->lg_mediasize < VTOC_BOOTSIZE) 1171 continue; 1172 fd = open(dsf, O_WRONLY); 1173 if (fd == -1) 1174 err(EXIT_FAILURE, "%s", dsf); 1175 /* 1176 * We ignore the first VTOC_BOOTSIZE bytes of boot code in 1177 * order to avoid overwriting the label. 1178 */ 1179 if (lseek(fd, sizeof(struct vtoc8), SEEK_SET) != 1180 sizeof(struct vtoc8)) 1181 err(EXIT_FAILURE, "%s", dsf); 1182 if (write(fd, (caddr_t)code + sizeof(struct vtoc8), 1183 VTOC_BOOTSIZE - sizeof(struct vtoc8)) != VTOC_BOOTSIZE - 1184 sizeof(struct vtoc8)) 1185 err(EXIT_FAILURE, "%s", dsf); 1186 installed++; 1187 close(fd); 1188 if (idx != 0 && atoi(s) == idx) 1189 break; 1190 } 1191 if (installed == 0) 1192 errx(EXIT_FAILURE, "%s: no partitions", gp->lg_name); 1193 else 1194 printf("partcode written to %s\n", 1195 idx != 0 ? pp->lg_name: gp->lg_name); 1196 } 1197 1198 static void 1199 gpart_bootcode(struct gctl_req *req, unsigned int fl) 1200 { 1201 struct gmesh mesh; 1202 struct gclass *classp; 1203 struct ggeom *gp; 1204 const char *s; 1205 void *bootcode, *partcode; 1206 size_t bootsize, partsize; 1207 int error, idx, vtoc8; 1208 1209 if (gctl_has_param(req, GPART_PARAM_BOOTCODE)) { 1210 s = gctl_get_ascii(req, GPART_PARAM_BOOTCODE); 1211 bootsize = 800 * 1024; /* Arbitrary limit. */ 1212 bootcode = gpart_bootfile_read(s, &bootsize); 1213 error = gctl_change_param(req, GPART_PARAM_BOOTCODE, bootsize, 1214 bootcode); 1215 if (error) 1216 errc(EXIT_FAILURE, error, "internal error"); 1217 } else 1218 bootcode = NULL; 1219 1220 s = gctl_get_ascii(req, "class"); 1221 if (s == NULL) 1222 abort(); 1223 error = geom_gettree(&mesh); 1224 if (error != 0) 1225 errc(EXIT_FAILURE, error, "Cannot get GEOM tree"); 1226 classp = find_class(&mesh, s); 1227 if (classp == NULL) { 1228 geom_deletetree(&mesh); 1229 errx(EXIT_FAILURE, "Class %s not found.", s); 1230 } 1231 if (gctl_get_int(req, "nargs") != 1) 1232 errx(EXIT_FAILURE, "Invalid number of arguments."); 1233 s = gctl_get_ascii(req, "arg0"); 1234 if (s == NULL) 1235 abort(); 1236 gp = find_geom(classp, s); 1237 if (gp == NULL) 1238 errx(EXIT_FAILURE, "No such geom: %s.", s); 1239 s = find_geomcfg(gp, "scheme"); 1240 if (s == NULL) 1241 errx(EXIT_FAILURE, "Scheme not found for geom %s", gp->lg_name); 1242 if (strcmp(s, "VTOC8") == 0) 1243 vtoc8 = 1; 1244 else 1245 vtoc8 = 0; 1246 1247 if (gctl_has_param(req, GPART_PARAM_PARTCODE)) { 1248 s = gctl_get_ascii(req, GPART_PARAM_PARTCODE); 1249 if (vtoc8 != 0) 1250 partsize = VTOC_BOOTSIZE; 1251 else 1252 partsize = 1024 * 1024; /* Arbitrary limit. */ 1253 partcode = gpart_bootfile_read(s, &partsize); 1254 error = gctl_delete_param(req, GPART_PARAM_PARTCODE); 1255 if (error) 1256 errc(EXIT_FAILURE, error, "internal error"); 1257 } else 1258 partcode = NULL; 1259 1260 if (gctl_has_param(req, GPART_PARAM_INDEX)) { 1261 if (partcode == NULL) 1262 errx(EXIT_FAILURE, "-i is only valid with -p"); 1263 idx = (int)gctl_get_intmax(req, GPART_PARAM_INDEX); 1264 if (idx < 1) 1265 errx(EXIT_FAILURE, "invalid partition index"); 1266 error = gctl_delete_param(req, GPART_PARAM_INDEX); 1267 if (error) 1268 errc(EXIT_FAILURE, error, "internal error"); 1269 } else 1270 idx = 0; 1271 1272 if (partcode != NULL) { 1273 if (vtoc8 == 0) { 1274 if (idx == 0) 1275 errx(EXIT_FAILURE, "missing -i option"); 1276 gpart_write_partcode(gp, idx, partcode, partsize); 1277 } else { 1278 if (partsize != VTOC_BOOTSIZE) 1279 errx(EXIT_FAILURE, "invalid bootcode"); 1280 gpart_write_partcode_vtoc8(gp, idx, partcode); 1281 } 1282 } else 1283 if (bootcode == NULL) 1284 errx(EXIT_FAILURE, "no -b nor -p"); 1285 1286 if (bootcode != NULL) 1287 gpart_issue(req, fl); 1288 1289 geom_deletetree(&mesh); 1290 free(partcode); 1291 } 1292 1293 static void 1294 gpart_print_error(const char *errstr) 1295 { 1296 char *errmsg; 1297 int error; 1298 1299 error = strtol(errstr, &errmsg, 0); 1300 if (errmsg != errstr) { 1301 while (errmsg[0] == ' ') 1302 errmsg++; 1303 if (errmsg[0] != '\0') 1304 warnc(error, "%s", errmsg); 1305 else 1306 warnc(error, NULL); 1307 } else 1308 warnx("%s", errmsg); 1309 } 1310 1311 static _Noreturn void 1312 gpart_issue(struct gctl_req *req, unsigned int fl __unused) 1313 { 1314 char buf[4096]; 1315 const char *errstr; 1316 int error, status; 1317 1318 if (gctl_get_int(req, "nargs") != 1) 1319 errx(EXIT_FAILURE, "Invalid number of arguments."); 1320 (void)gctl_delete_param(req, "nargs"); 1321 1322 /* autofill parameters (if applicable). */ 1323 error = gpart_autofill(req); 1324 if (error) { 1325 warnc(error, "autofill"); 1326 status = EXIT_FAILURE; 1327 goto done; 1328 } 1329 1330 bzero(buf, sizeof(buf)); 1331 gctl_rw_param(req, "output", sizeof(buf), buf); 1332 errstr = gctl_issue(req); 1333 if (errstr == NULL || errstr[0] == '\0') { 1334 if (buf[0] != '\0') 1335 printf("%s", buf); 1336 status = EXIT_SUCCESS; 1337 goto done; 1338 } 1339 1340 gpart_print_error(errstr); 1341 status = EXIT_FAILURE; 1342 1343 done: 1344 gctl_free(req); 1345 exit(status); 1346 } 1347