1 /*- 2 * Copyright (c) 2006-2008 Marcel Moolenaar 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include <sys/param.h> 31 #include <sys/apm.h> 32 #include <sys/bio.h> 33 #include <sys/endian.h> 34 #include <sys/kernel.h> 35 #include <sys/kobj.h> 36 #include <sys/limits.h> 37 #include <sys/lock.h> 38 #include <sys/malloc.h> 39 #include <sys/mutex.h> 40 #include <sys/queue.h> 41 #include <sys/sbuf.h> 42 #include <sys/systm.h> 43 #include <sys/sysctl.h> 44 #include <geom/geom.h> 45 #include <geom/part/g_part.h> 46 47 #include "g_part_if.h" 48 49 FEATURE(geom_part_apm, "GEOM partitioning class for Apple-style partitions"); 50 51 struct g_part_apm_table { 52 struct g_part_table base; 53 struct apm_ddr ddr; 54 struct apm_ent self; 55 int tivo_series1; 56 }; 57 58 struct g_part_apm_entry { 59 struct g_part_entry base; 60 struct apm_ent ent; 61 }; 62 63 static int g_part_apm_add(struct g_part_table *, struct g_part_entry *, 64 struct g_part_parms *); 65 static int g_part_apm_create(struct g_part_table *, struct g_part_parms *); 66 static int g_part_apm_destroy(struct g_part_table *, struct g_part_parms *); 67 static void g_part_apm_dumpconf(struct g_part_table *, struct g_part_entry *, 68 struct sbuf *, const char *); 69 static int g_part_apm_dumpto(struct g_part_table *, struct g_part_entry *); 70 static int g_part_apm_modify(struct g_part_table *, struct g_part_entry *, 71 struct g_part_parms *); 72 static const char *g_part_apm_name(struct g_part_table *, struct g_part_entry *, 73 char *, size_t); 74 static int g_part_apm_probe(struct g_part_table *, struct g_consumer *); 75 static int g_part_apm_read(struct g_part_table *, struct g_consumer *); 76 static const char *g_part_apm_type(struct g_part_table *, struct g_part_entry *, 77 char *, size_t); 78 static int g_part_apm_write(struct g_part_table *, struct g_consumer *); 79 static int g_part_apm_resize(struct g_part_table *, struct g_part_entry *, 80 struct g_part_parms *); 81 82 static kobj_method_t g_part_apm_methods[] = { 83 KOBJMETHOD(g_part_add, g_part_apm_add), 84 KOBJMETHOD(g_part_create, g_part_apm_create), 85 KOBJMETHOD(g_part_destroy, g_part_apm_destroy), 86 KOBJMETHOD(g_part_dumpconf, g_part_apm_dumpconf), 87 KOBJMETHOD(g_part_dumpto, g_part_apm_dumpto), 88 KOBJMETHOD(g_part_modify, g_part_apm_modify), 89 KOBJMETHOD(g_part_resize, g_part_apm_resize), 90 KOBJMETHOD(g_part_name, g_part_apm_name), 91 KOBJMETHOD(g_part_probe, g_part_apm_probe), 92 KOBJMETHOD(g_part_read, g_part_apm_read), 93 KOBJMETHOD(g_part_type, g_part_apm_type), 94 KOBJMETHOD(g_part_write, g_part_apm_write), 95 { 0, 0 } 96 }; 97 98 static struct g_part_scheme g_part_apm_scheme = { 99 "APM", 100 g_part_apm_methods, 101 sizeof(struct g_part_apm_table), 102 .gps_entrysz = sizeof(struct g_part_apm_entry), 103 .gps_minent = 16, 104 .gps_maxent = 4096, 105 }; 106 G_PART_SCHEME_DECLARE(g_part_apm); 107 108 static void 109 swab(char *buf, size_t bufsz) 110 { 111 int i; 112 char ch; 113 114 for (i = 0; i < bufsz; i += 2) { 115 ch = buf[i]; 116 buf[i] = buf[i + 1]; 117 buf[i + 1] = ch; 118 } 119 } 120 121 static int 122 apm_parse_type(const char *type, char *buf, size_t bufsz) 123 { 124 const char *alias; 125 126 if (type[0] == '!') { 127 type++; 128 if (strlen(type) > bufsz) 129 return (EINVAL); 130 if (!strcmp(type, APM_ENT_TYPE_SELF) || 131 !strcmp(type, APM_ENT_TYPE_UNUSED)) 132 return (EINVAL); 133 strncpy(buf, type, bufsz); 134 return (0); 135 } 136 alias = g_part_alias_name(G_PART_ALIAS_APPLE_BOOT); 137 if (!strcasecmp(type, alias)) { 138 strcpy(buf, APM_ENT_TYPE_APPLE_BOOT); 139 return (0); 140 } 141 alias = g_part_alias_name(G_PART_ALIAS_APPLE_HFS); 142 if (!strcasecmp(type, alias)) { 143 strcpy(buf, APM_ENT_TYPE_APPLE_HFS); 144 return (0); 145 } 146 alias = g_part_alias_name(G_PART_ALIAS_APPLE_UFS); 147 if (!strcasecmp(type, alias)) { 148 strcpy(buf, APM_ENT_TYPE_APPLE_UFS); 149 return (0); 150 } 151 alias = g_part_alias_name(G_PART_ALIAS_FREEBSD_BOOT); 152 if (!strcasecmp(type, alias)) { 153 strcpy(buf, APM_ENT_TYPE_APPLE_BOOT); 154 return (0); 155 } 156 alias = g_part_alias_name(G_PART_ALIAS_FREEBSD); 157 if (!strcasecmp(type, alias)) { 158 strcpy(buf, APM_ENT_TYPE_FREEBSD); 159 return (0); 160 } 161 alias = g_part_alias_name(G_PART_ALIAS_FREEBSD_NANDFS); 162 if (!strcasecmp(type, alias)) { 163 strcpy(buf, APM_ENT_TYPE_FREEBSD_NANDFS); 164 return (0); 165 } 166 alias = g_part_alias_name(G_PART_ALIAS_FREEBSD_SWAP); 167 if (!strcasecmp(type, alias)) { 168 strcpy(buf, APM_ENT_TYPE_FREEBSD_SWAP); 169 return (0); 170 } 171 alias = g_part_alias_name(G_PART_ALIAS_FREEBSD_UFS); 172 if (!strcasecmp(type, alias)) { 173 strcpy(buf, APM_ENT_TYPE_FREEBSD_UFS); 174 return (0); 175 } 176 alias = g_part_alias_name(G_PART_ALIAS_FREEBSD_VINUM); 177 if (!strcasecmp(type, alias)) { 178 strcpy(buf, APM_ENT_TYPE_FREEBSD_VINUM); 179 return (0); 180 } 181 alias = g_part_alias_name(G_PART_ALIAS_FREEBSD_ZFS); 182 if (!strcasecmp(type, alias)) { 183 strcpy(buf, APM_ENT_TYPE_FREEBSD_ZFS); 184 return (0); 185 } 186 return (EINVAL); 187 } 188 189 static int 190 apm_read_ent(struct g_consumer *cp, uint32_t blk, struct apm_ent *ent, 191 int tivo_series1) 192 { 193 struct g_provider *pp; 194 char *buf; 195 int error; 196 197 pp = cp->provider; 198 buf = g_read_data(cp, pp->sectorsize * blk, pp->sectorsize, &error); 199 if (buf == NULL) 200 return (error); 201 if (tivo_series1) 202 swab(buf, pp->sectorsize); 203 ent->ent_sig = be16dec(buf); 204 ent->ent_pmblkcnt = be32dec(buf + 4); 205 ent->ent_start = be32dec(buf + 8); 206 ent->ent_size = be32dec(buf + 12); 207 bcopy(buf + 16, ent->ent_name, sizeof(ent->ent_name)); 208 bcopy(buf + 48, ent->ent_type, sizeof(ent->ent_type)); 209 g_free(buf); 210 return (0); 211 } 212 213 static int 214 g_part_apm_add(struct g_part_table *basetable, struct g_part_entry *baseentry, 215 struct g_part_parms *gpp) 216 { 217 struct g_part_apm_entry *entry; 218 struct g_part_apm_table *table; 219 int error; 220 221 entry = (struct g_part_apm_entry *)baseentry; 222 table = (struct g_part_apm_table *)basetable; 223 entry->ent.ent_sig = APM_ENT_SIG; 224 entry->ent.ent_pmblkcnt = table->self.ent_pmblkcnt; 225 entry->ent.ent_start = gpp->gpp_start; 226 entry->ent.ent_size = gpp->gpp_size; 227 if (baseentry->gpe_deleted) { 228 bzero(entry->ent.ent_type, sizeof(entry->ent.ent_type)); 229 bzero(entry->ent.ent_name, sizeof(entry->ent.ent_name)); 230 } 231 error = apm_parse_type(gpp->gpp_type, entry->ent.ent_type, 232 sizeof(entry->ent.ent_type)); 233 if (error) 234 return (error); 235 if (gpp->gpp_parms & G_PART_PARM_LABEL) { 236 if (strlen(gpp->gpp_label) > sizeof(entry->ent.ent_name)) 237 return (EINVAL); 238 strncpy(entry->ent.ent_name, gpp->gpp_label, 239 sizeof(entry->ent.ent_name)); 240 } 241 if (baseentry->gpe_index >= table->self.ent_pmblkcnt) 242 table->self.ent_pmblkcnt = baseentry->gpe_index + 1; 243 KASSERT(table->self.ent_size >= table->self.ent_pmblkcnt, 244 ("%s", __func__)); 245 KASSERT(table->self.ent_size > baseentry->gpe_index, 246 ("%s", __func__)); 247 return (0); 248 } 249 250 static int 251 g_part_apm_create(struct g_part_table *basetable, struct g_part_parms *gpp) 252 { 253 struct g_provider *pp; 254 struct g_part_apm_table *table; 255 uint32_t last; 256 257 /* We don't nest, which means that our depth should be 0. */ 258 if (basetable->gpt_depth != 0) 259 return (ENXIO); 260 261 table = (struct g_part_apm_table *)basetable; 262 pp = gpp->gpp_provider; 263 if (pp->sectorsize != 512 || 264 pp->mediasize < (2 + 2 * basetable->gpt_entries) * pp->sectorsize) 265 return (ENOSPC); 266 267 /* APM uses 32-bit LBAs. */ 268 last = MIN(pp->mediasize / pp->sectorsize, UINT32_MAX) - 1; 269 270 basetable->gpt_first = 2 + basetable->gpt_entries; 271 basetable->gpt_last = last; 272 273 table->ddr.ddr_sig = APM_DDR_SIG; 274 table->ddr.ddr_blksize = pp->sectorsize; 275 table->ddr.ddr_blkcount = last + 1; 276 277 table->self.ent_sig = APM_ENT_SIG; 278 table->self.ent_pmblkcnt = basetable->gpt_entries + 1; 279 table->self.ent_start = 1; 280 table->self.ent_size = table->self.ent_pmblkcnt; 281 strcpy(table->self.ent_name, "Apple"); 282 strcpy(table->self.ent_type, APM_ENT_TYPE_SELF); 283 return (0); 284 } 285 286 static int 287 g_part_apm_destroy(struct g_part_table *basetable, struct g_part_parms *gpp) 288 { 289 290 /* Wipe the first 2 sectors to clear the partitioning. */ 291 basetable->gpt_smhead |= 3; 292 return (0); 293 } 294 295 static void 296 g_part_apm_dumpconf(struct g_part_table *table, struct g_part_entry *baseentry, 297 struct sbuf *sb, const char *indent) 298 { 299 union { 300 char name[APM_ENT_NAMELEN + 1]; 301 char type[APM_ENT_TYPELEN + 1]; 302 } u; 303 struct g_part_apm_entry *entry; 304 305 entry = (struct g_part_apm_entry *)baseentry; 306 if (indent == NULL) { 307 /* conftxt: libdisk compatibility */ 308 sbuf_printf(sb, " xs APPLE xt %s", entry->ent.ent_type); 309 } else if (entry != NULL) { 310 /* confxml: partition entry information */ 311 strncpy(u.name, entry->ent.ent_name, APM_ENT_NAMELEN); 312 u.name[APM_ENT_NAMELEN] = '\0'; 313 sbuf_printf(sb, "%s<label>%s</label>\n", indent, u.name); 314 strncpy(u.type, entry->ent.ent_type, APM_ENT_TYPELEN); 315 u.type[APM_ENT_TYPELEN] = '\0'; 316 sbuf_printf(sb, "%s<rawtype>%s</rawtype>\n", indent, u.type); 317 } else { 318 /* confxml: scheme information */ 319 } 320 } 321 322 static int 323 g_part_apm_dumpto(struct g_part_table *table, struct g_part_entry *baseentry) 324 { 325 struct g_part_apm_entry *entry; 326 327 entry = (struct g_part_apm_entry *)baseentry; 328 return ((!strcmp(entry->ent.ent_type, APM_ENT_TYPE_FREEBSD_SWAP)) 329 ? 1 : 0); 330 } 331 332 static int 333 g_part_apm_modify(struct g_part_table *basetable, 334 struct g_part_entry *baseentry, struct g_part_parms *gpp) 335 { 336 struct g_part_apm_entry *entry; 337 int error; 338 339 entry = (struct g_part_apm_entry *)baseentry; 340 if (gpp->gpp_parms & G_PART_PARM_LABEL) { 341 if (strlen(gpp->gpp_label) > sizeof(entry->ent.ent_name)) 342 return (EINVAL); 343 } 344 if (gpp->gpp_parms & G_PART_PARM_TYPE) { 345 error = apm_parse_type(gpp->gpp_type, entry->ent.ent_type, 346 sizeof(entry->ent.ent_type)); 347 if (error) 348 return (error); 349 } 350 if (gpp->gpp_parms & G_PART_PARM_LABEL) { 351 strncpy(entry->ent.ent_name, gpp->gpp_label, 352 sizeof(entry->ent.ent_name)); 353 } 354 return (0); 355 } 356 357 static int 358 g_part_apm_resize(struct g_part_table *basetable, 359 struct g_part_entry *baseentry, struct g_part_parms *gpp) 360 { 361 struct g_part_apm_entry *entry; 362 363 entry = (struct g_part_apm_entry *)baseentry; 364 baseentry->gpe_end = baseentry->gpe_start + gpp->gpp_size - 1; 365 entry->ent.ent_size = gpp->gpp_size; 366 367 return (0); 368 } 369 370 static const char * 371 g_part_apm_name(struct g_part_table *table, struct g_part_entry *baseentry, 372 char *buf, size_t bufsz) 373 { 374 375 snprintf(buf, bufsz, "s%d", baseentry->gpe_index + 1); 376 return (buf); 377 } 378 379 static int 380 g_part_apm_probe(struct g_part_table *basetable, struct g_consumer *cp) 381 { 382 struct g_provider *pp; 383 struct g_part_apm_table *table; 384 char *buf; 385 int error; 386 387 /* We don't nest, which means that our depth should be 0. */ 388 if (basetable->gpt_depth != 0) 389 return (ENXIO); 390 391 table = (struct g_part_apm_table *)basetable; 392 table->tivo_series1 = 0; 393 pp = cp->provider; 394 395 /* Sanity-check the provider. */ 396 if (pp->mediasize < 4 * pp->sectorsize) 397 return (ENOSPC); 398 399 /* Check that there's a Driver Descriptor Record (DDR). */ 400 buf = g_read_data(cp, 0L, pp->sectorsize, &error); 401 if (buf == NULL) 402 return (error); 403 if (be16dec(buf) == APM_DDR_SIG) { 404 /* Normal Apple DDR */ 405 table->ddr.ddr_sig = be16dec(buf); 406 table->ddr.ddr_blksize = be16dec(buf + 2); 407 table->ddr.ddr_blkcount = be32dec(buf + 4); 408 g_free(buf); 409 if (table->ddr.ddr_blksize != pp->sectorsize) 410 return (ENXIO); 411 if (table->ddr.ddr_blkcount > pp->mediasize / pp->sectorsize) 412 return (ENXIO); 413 } else { 414 /* 415 * Check for Tivo drives, which have no DDR and a different 416 * signature. Those whose first two bytes are 14 92 are 417 * Series 2 drives, and aren't supported. Those that start 418 * with 92 14 are series 1 drives and are supported. 419 */ 420 if (be16dec(buf) != 0x9214) { 421 /* If this is 0x1492 it could be a series 2 drive */ 422 g_free(buf); 423 return (ENXIO); 424 } 425 table->ddr.ddr_sig = APM_DDR_SIG; /* XXX */ 426 table->ddr.ddr_blksize = pp->sectorsize; /* XXX */ 427 table->ddr.ddr_blkcount = 428 MIN(pp->mediasize / pp->sectorsize, UINT32_MAX); 429 table->tivo_series1 = 1; 430 g_free(buf); 431 } 432 433 /* Check that there's a Partition Map. */ 434 error = apm_read_ent(cp, 1, &table->self, table->tivo_series1); 435 if (error) 436 return (error); 437 if (table->self.ent_sig != APM_ENT_SIG) 438 return (ENXIO); 439 if (strcmp(table->self.ent_type, APM_ENT_TYPE_SELF)) 440 return (ENXIO); 441 if (table->self.ent_pmblkcnt >= table->ddr.ddr_blkcount) 442 return (ENXIO); 443 return (G_PART_PROBE_PRI_NORM); 444 } 445 446 static int 447 g_part_apm_read(struct g_part_table *basetable, struct g_consumer *cp) 448 { 449 struct apm_ent ent; 450 struct g_part_apm_entry *entry; 451 struct g_part_apm_table *table; 452 int error, index; 453 454 table = (struct g_part_apm_table *)basetable; 455 456 basetable->gpt_first = table->self.ent_size + 1; 457 basetable->gpt_last = table->ddr.ddr_blkcount - 1; 458 basetable->gpt_entries = table->self.ent_size - 1; 459 460 for (index = table->self.ent_pmblkcnt - 1; index > 0; index--) { 461 error = apm_read_ent(cp, index + 1, &ent, table->tivo_series1); 462 if (error) 463 continue; 464 if (!strcmp(ent.ent_type, APM_ENT_TYPE_UNUSED)) 465 continue; 466 entry = (struct g_part_apm_entry *)g_part_new_entry(basetable, 467 index, ent.ent_start, ent.ent_start + ent.ent_size - 1); 468 entry->ent = ent; 469 } 470 471 return (0); 472 } 473 474 static const char * 475 g_part_apm_type(struct g_part_table *basetable, struct g_part_entry *baseentry, 476 char *buf, size_t bufsz) 477 { 478 struct g_part_apm_entry *entry; 479 const char *type; 480 size_t len; 481 482 entry = (struct g_part_apm_entry *)baseentry; 483 type = entry->ent.ent_type; 484 if (!strcmp(type, APM_ENT_TYPE_APPLE_BOOT)) 485 return (g_part_alias_name(G_PART_ALIAS_APPLE_BOOT)); 486 if (!strcmp(type, APM_ENT_TYPE_APPLE_HFS)) 487 return (g_part_alias_name(G_PART_ALIAS_APPLE_HFS)); 488 if (!strcmp(type, APM_ENT_TYPE_APPLE_UFS)) 489 return (g_part_alias_name(G_PART_ALIAS_APPLE_UFS)); 490 if (!strcmp(type, APM_ENT_TYPE_FREEBSD)) 491 return (g_part_alias_name(G_PART_ALIAS_FREEBSD)); 492 if (!strcmp(type, APM_ENT_TYPE_FREEBSD_NANDFS)) 493 return (g_part_alias_name(G_PART_ALIAS_FREEBSD_NANDFS)); 494 if (!strcmp(type, APM_ENT_TYPE_FREEBSD_SWAP)) 495 return (g_part_alias_name(G_PART_ALIAS_FREEBSD_SWAP)); 496 if (!strcmp(type, APM_ENT_TYPE_FREEBSD_UFS)) 497 return (g_part_alias_name(G_PART_ALIAS_FREEBSD_UFS)); 498 if (!strcmp(type, APM_ENT_TYPE_FREEBSD_VINUM)) 499 return (g_part_alias_name(G_PART_ALIAS_FREEBSD_VINUM)); 500 if (!strcmp(type, APM_ENT_TYPE_FREEBSD_ZFS)) 501 return (g_part_alias_name(G_PART_ALIAS_FREEBSD_ZFS)); 502 buf[0] = '!'; 503 len = MIN(sizeof(entry->ent.ent_type), bufsz - 2); 504 bcopy(type, buf + 1, len); 505 buf[len + 1] = '\0'; 506 return (buf); 507 } 508 509 static int 510 g_part_apm_write(struct g_part_table *basetable, struct g_consumer *cp) 511 { 512 struct g_provider *pp; 513 struct g_part_entry *baseentry; 514 struct g_part_apm_entry *entry; 515 struct g_part_apm_table *table; 516 char *buf, *ptr; 517 uint32_t index; 518 int error; 519 size_t tblsz; 520 521 pp = cp->provider; 522 table = (struct g_part_apm_table *)basetable; 523 /* 524 * Tivo Series 1 disk partitions are currently read-only. 525 */ 526 if (table->tivo_series1) 527 return (EOPNOTSUPP); 528 529 /* Write the DDR only when we're newly created. */ 530 if (basetable->gpt_created) { 531 buf = g_malloc(pp->sectorsize, M_WAITOK | M_ZERO); 532 be16enc(buf, table->ddr.ddr_sig); 533 be16enc(buf + 2, table->ddr.ddr_blksize); 534 be32enc(buf + 4, table->ddr.ddr_blkcount); 535 error = g_write_data(cp, 0, buf, pp->sectorsize); 536 g_free(buf); 537 if (error) 538 return (error); 539 } 540 541 /* Allocate the buffer for all entries */ 542 tblsz = table->self.ent_pmblkcnt; 543 buf = g_malloc(tblsz * pp->sectorsize, M_WAITOK | M_ZERO); 544 545 /* Fill the self entry */ 546 be16enc(buf, APM_ENT_SIG); 547 be32enc(buf + 4, table->self.ent_pmblkcnt); 548 be32enc(buf + 8, table->self.ent_start); 549 be32enc(buf + 12, table->self.ent_size); 550 bcopy(table->self.ent_name, buf + 16, sizeof(table->self.ent_name)); 551 bcopy(table->self.ent_type, buf + 48, sizeof(table->self.ent_type)); 552 553 baseentry = LIST_FIRST(&basetable->gpt_entry); 554 for (index = 1; index < tblsz; index++) { 555 entry = (baseentry != NULL && index == baseentry->gpe_index) 556 ? (struct g_part_apm_entry *)baseentry : NULL; 557 ptr = buf + index * pp->sectorsize; 558 be16enc(ptr, APM_ENT_SIG); 559 be32enc(ptr + 4, table->self.ent_pmblkcnt); 560 if (entry != NULL && !baseentry->gpe_deleted) { 561 be32enc(ptr + 8, entry->ent.ent_start); 562 be32enc(ptr + 12, entry->ent.ent_size); 563 bcopy(entry->ent.ent_name, ptr + 16, 564 sizeof(entry->ent.ent_name)); 565 bcopy(entry->ent.ent_type, ptr + 48, 566 sizeof(entry->ent.ent_type)); 567 } else { 568 strcpy(ptr + 48, APM_ENT_TYPE_UNUSED); 569 } 570 if (entry != NULL) 571 baseentry = LIST_NEXT(baseentry, gpe_entry); 572 } 573 574 for (index = 0; index < tblsz; index += MAXPHYS / pp->sectorsize) { 575 error = g_write_data(cp, (1 + index) * pp->sectorsize, 576 buf + index * pp->sectorsize, 577 (tblsz - index > MAXPHYS / pp->sectorsize) ? MAXPHYS: 578 (tblsz - index) * pp->sectorsize); 579 if (error) { 580 g_free(buf); 581 return (error); 582 } 583 } 584 g_free(buf); 585 return (0); 586 } 587