1 /* 2 * Copyright (c) 2003-2007 The DragonFly Project. All rights reserved. 3 * 4 * This code is derived from software contributed to The DragonFly Project 5 * by Matthew Dillon <dillon@backplane.com> 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 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 3. Neither the name of The DragonFly Project nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific, prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * ---------------------------------------------------------------------------- 35 * "THE BEER-WARE LICENSE" (Revision 42): 36 * <phk@FreeBSD.ORG> wrote this file. As long as you retain this notice you 37 * can do whatever you want with this stuff. If we meet some day, and you think 38 * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp 39 * ---------------------------------------------------------------------------- 40 * 41 * Copyright (c) 1982, 1986, 1988, 1993 42 * The Regents of the University of California. All rights reserved. 43 * (c) UNIX System Laboratories, Inc. 44 * All or some portions of this file are derived from material licensed 45 * to the University of California by American Telephone and Telegraph 46 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 47 * the permission of UNIX System Laboratories, Inc. 48 * 49 * Copyright (c) 1994 Bruce D. Evans. 50 * All rights reserved. 51 * 52 * Copyright (c) 1990 The Regents of the University of California. 53 * All rights reserved. 54 * 55 * This code is derived from software contributed to Berkeley by 56 * William Jolitz. 57 * 58 * Copyright (c) 1982, 1986, 1988 Regents of the University of California. 59 * All rights reserved. 60 * 61 * Redistribution and use in source and binary forms, with or without 62 * modification, are permitted provided that the following conditions 63 * are met: 64 * 1. Redistributions of source code must retain the above copyright 65 * notice, this list of conditions and the following disclaimer. 66 * 2. Redistributions in binary form must reproduce the above copyright 67 * notice, this list of conditions and the following disclaimer in the 68 * documentation and/or other materials provided with the distribution. 69 * 3. All advertising materials mentioning features or use of this software 70 * must display the following acknowledgement: 71 * This product includes software developed by the University of 72 * California, Berkeley and its contributors. 73 * 4. Neither the name of the University nor the names of its contributors 74 * may be used to endorse or promote products derived from this software 75 * without specific prior written permission. 76 * 77 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 78 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 79 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 80 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 81 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 82 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 83 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 84 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 85 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 86 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 87 * SUCH DAMAGE. 88 * 89 * @(#)ufs_disksubr.c 8.5 (Berkeley) 1/21/94 90 * $FreeBSD: src/sys/kern/subr_disk.c,v 1.20.2.6 2001/10/05 07:14:57 peter Exp $ 91 * $FreeBSD: src/sys/ufs/ufs/ufs_disksubr.c,v 1.44.2.3 2001/03/05 05:42:19 obrien Exp $ 92 */ 93 94 #include <sys/param.h> 95 #include <sys/systm.h> 96 #include <sys/kernel.h> 97 #include <sys/proc.h> 98 #include <sys/sysctl.h> 99 #include <sys/buf.h> 100 #include <sys/conf.h> 101 #include <sys/disklabel.h> 102 #include <sys/disklabel32.h> 103 #include <sys/diskslice.h> 104 #include <sys/disk.h> 105 #include <sys/dtype.h> /* DTYPE_* constants */ 106 #include <machine/md_var.h> 107 #include <sys/ctype.h> 108 #include <sys/syslog.h> 109 #include <sys/device.h> 110 #include <sys/msgport.h> 111 #include <sys/msgport2.h> 112 #include <sys/buf2.h> 113 114 #include <vfs/ufs/dinode.h> /* XXX used only for fs.h */ 115 #include <vfs/ufs/fs.h> /* XXX used only to get BBSIZE/SBSIZE */ 116 117 static void partition_info(const char *sname, int part, struct partition32 *pp); 118 static void slice_info(const char *sname, struct diskslice *sp); 119 static const char *l32_fixlabel(const char *sname, struct diskslice *sp, 120 disklabel_t lpx, int writeflag); 121 122 /* 123 * Retrieve the partition start and extent, in blocks. Return 0 on success, 124 * EINVAL on error. 125 */ 126 static int 127 l32_getpartbounds(struct diskslices *ssp, disklabel_t lp, u_int32_t part, 128 u_int64_t *start, u_int64_t *blocks) 129 { 130 struct partition32 *pp; 131 132 if (part >= lp.lab32->d_npartitions) 133 return (EINVAL); 134 pp = &lp.lab32->d_partitions[part]; 135 *start = pp->p_offset; 136 *blocks = pp->p_size; 137 return(0); 138 } 139 140 static void 141 l32_loadpartinfo(disklabel_t lp, u_int32_t part, struct partinfo *dpart) 142 { 143 struct partition32 *pp; 144 const size_t uuid_size = sizeof(struct uuid); 145 146 bzero(&dpart->fstype_uuid, uuid_size); 147 bzero(&dpart->storage_uuid, uuid_size); 148 if (part < lp.lab32->d_npartitions) { 149 pp = &lp.lab32->d_partitions[part]; 150 dpart->fstype = pp->p_fstype; 151 } else { 152 dpart->fstype = 0; 153 } 154 } 155 156 static u_int32_t 157 l32_getnumparts(disklabel_t lp) 158 { 159 return(lp.lab32->d_npartitions); 160 } 161 162 /* 163 * Attempt to read a disk label from a device. 164 * 165 * Returns NULL on sucess, and an error string on failure 166 */ 167 static const char * 168 l32_readdisklabel(cdev_t dev, struct diskslice *sp, disklabel_t *lpp, 169 struct disk_info *info) 170 { 171 disklabel_t lpx; 172 struct buf *bp; 173 struct disklabel32 *dlp; 174 const char *msg = NULL; 175 int secsize = info->d_media_blksize; 176 177 bp = geteblk(secsize); 178 bp->b_bio1.bio_offset = (off_t)LABELSECTOR32 * secsize; 179 bp->b_bio1.bio_done = biodone_sync; 180 bp->b_bio1.bio_flags |= BIO_SYNC; 181 bp->b_bcount = secsize; 182 bp->b_flags &= ~B_INVAL; 183 bp->b_cmd = BUF_CMD_READ; 184 dev_dstrategy(dev, &bp->b_bio1); 185 if (biowait(&bp->b_bio1, "labrd")) 186 msg = "I/O error"; 187 else for (dlp = (struct disklabel32 *)bp->b_data; 188 dlp <= (struct disklabel32 *)((char *)bp->b_data + 189 secsize - sizeof(*dlp)); 190 dlp = (struct disklabel32 *)((char *)dlp + sizeof(long))) { 191 if (dlp->d_magic != DISKMAGIC32 || 192 dlp->d_magic2 != DISKMAGIC32) { 193 /* 194 * NOTE! dsreadandsetlabel() does a strcmp() on 195 * this string. 196 */ 197 if (msg == NULL) 198 msg = "no disk label"; 199 } else if (dlp->d_npartitions > MAXPARTITIONS32 || 200 dkcksum32(dlp) != 0) { 201 msg = "disk label corrupted"; 202 } else { 203 lpx.lab32 = dlp; 204 msg = l32_fixlabel(NULL, sp, lpx, FALSE); 205 if (msg == NULL) { 206 (*lpp).lab32 = kmalloc(sizeof(*dlp), 207 M_DEVBUF, M_WAITOK|M_ZERO); 208 *(*lpp).lab32 = *dlp; 209 } 210 break; 211 } 212 } 213 bp->b_flags |= B_INVAL | B_AGE; 214 brelse(bp); 215 return (msg); 216 } 217 218 /* 219 * Check new disk label for sensibility before setting it. 220 */ 221 static int 222 l32_setdisklabel(disklabel_t olpx, disklabel_t nlpx, struct diskslices *ssp, 223 struct diskslice *sp, u_int32_t *openmask) 224 { 225 struct disklabel32 *olp, *nlp; 226 struct partition32 *opp, *npp; 227 int part; 228 int i; 229 230 olp = olpx.lab32; 231 nlp = nlpx.lab32; 232 233 /* 234 * Check it is actually a disklabel we are looking at. 235 */ 236 if (nlp->d_magic != DISKMAGIC32 || nlp->d_magic2 != DISKMAGIC32 || 237 dkcksum32(nlp) != 0) 238 return (EINVAL); 239 240 /* 241 * For each partition that we think is open, check the new disklabel 242 * for compatibility. Ignore special partitions (>= 128). 243 */ 244 i = 0; 245 while (i < 128) { 246 if (openmask[i >> 5] == 0) { 247 i += 32; 248 continue; 249 } 250 if ((openmask[i >> 5] & (1 << (i & 31))) == 0) { 251 ++i; 252 continue; 253 } 254 if (nlp->d_npartitions <= i) 255 return (EBUSY); 256 opp = &olp->d_partitions[i]; 257 npp = &nlp->d_partitions[i]; 258 if (npp->p_offset != opp->p_offset || npp->p_size < opp->p_size) 259 return (EBUSY); 260 /* 261 * Copy internally-set partition information 262 * if new label doesn't include it. XXX 263 * (If we are using it then we had better stay the same type) 264 * This is possibly dubious, as someone else noted (XXX) 265 */ 266 if (npp->p_fstype == FS_UNUSED && opp->p_fstype != FS_UNUSED) { 267 npp->p_fstype = opp->p_fstype; 268 npp->p_fsize = opp->p_fsize; 269 npp->p_frag = opp->p_frag; 270 npp->p_cpg = opp->p_cpg; 271 } 272 ++i; 273 } 274 nlp->d_checksum = 0; 275 nlp->d_checksum = dkcksum32(nlp); 276 *olp = *nlp; 277 278 if (olp->d_partitions[RAW_PART].p_offset) 279 return (EXDEV); 280 if (olp->d_secperunit > sp->ds_size) 281 return (ENOSPC); 282 for (part = 0; part < olp->d_npartitions; ++part) { 283 if (olp->d_partitions[part].p_size > sp->ds_size) 284 return(ENOSPC); 285 } 286 return (0); 287 } 288 289 /* 290 * Write disk label back to device after modification. 291 */ 292 static int 293 l32_writedisklabel(cdev_t dev, struct diskslices *ssp, struct diskslice *sp, 294 disklabel_t lpx) 295 { 296 struct disklabel32 *lp; 297 struct disklabel32 *dlp; 298 struct buf *bp; 299 const char *msg; 300 int error = 0; 301 302 lp = lpx.lab32; 303 304 if (lp->d_partitions[RAW_PART].p_offset != 0) 305 return (EXDEV); /* not quite right */ 306 307 bp = geteblk((int)lp->d_secsize); 308 bp->b_bio1.bio_offset = (off_t)LABELSECTOR32 * lp->d_secsize; 309 bp->b_bio1.bio_done = biodone_sync; 310 bp->b_bio1.bio_flags |= BIO_SYNC; 311 bp->b_bcount = lp->d_secsize; 312 313 #if 1 314 /* 315 * We read the label first to see if it's there, 316 * in which case we will put ours at the same offset into the block.. 317 * (I think this is stupid [Julian]) 318 * Note that you can't write a label out over a corrupted label! 319 * (also stupid.. how do you write the first one? by raw writes?) 320 */ 321 bp->b_flags &= ~B_INVAL; 322 bp->b_cmd = BUF_CMD_READ; 323 KKASSERT(dkpart(dev) == WHOLE_SLICE_PART); 324 dev_dstrategy(dev, &bp->b_bio1); 325 error = biowait(&bp->b_bio1, "labrd"); 326 if (error) 327 goto done; 328 for (dlp = (struct disklabel32 *)bp->b_data; 329 dlp <= (struct disklabel32 *) 330 ((char *)bp->b_data + lp->d_secsize - sizeof(*dlp)); 331 dlp = (struct disklabel32 *)((char *)dlp + sizeof(long))) { 332 if (dlp->d_magic == DISKMAGIC32 && 333 dlp->d_magic2 == DISKMAGIC32 && dkcksum32(dlp) == 0) { 334 *dlp = *lp; 335 lpx.lab32 = dlp; 336 msg = l32_fixlabel(NULL, sp, lpx, TRUE); 337 if (msg) { 338 error = EINVAL; 339 } else { 340 bp->b_cmd = BUF_CMD_WRITE; 341 bp->b_bio1.bio_done = biodone_sync; 342 bp->b_bio1.bio_flags |= BIO_SYNC; 343 KKASSERT(dkpart(dev) == WHOLE_SLICE_PART); 344 dev_dstrategy(dev, &bp->b_bio1); 345 error = biowait(&bp->b_bio1, "labwr"); 346 } 347 goto done; 348 } 349 } 350 error = ESRCH; 351 done: 352 #else 353 bzero(bp->b_data, lp->d_secsize); 354 dlp = (struct disklabel32 *)bp->b_data; 355 *dlp = *lp; 356 bp->b_flags &= ~B_INVAL; 357 bp->b_cmd = BUF_CMD_WRITE; 358 bp->b_bio1.bio_done = biodone_sync; 359 bp->b_bio1.bio_flags |= BIO_SYNC; 360 BUF_STRATEGY(bp, 1); 361 error = biowait(&bp->b_bio1, "labwr"); 362 #endif 363 bp->b_flags |= B_INVAL | B_AGE; 364 brelse(bp); 365 return (error); 366 } 367 368 /* 369 * Create a disklabel based on a disk_info structure, initializing 370 * the appropriate fields and creating a raw partition that covers the 371 * whole disk. 372 * 373 * If a diskslice is passed, the label is truncated to the slice 374 */ 375 static disklabel_t 376 l32_clone_label(struct disk_info *info, struct diskslice *sp) 377 { 378 struct disklabel32 *lp; 379 disklabel_t res; 380 381 lp = kmalloc(sizeof *lp, M_DEVBUF, M_WAITOK | M_ZERO); 382 lp->d_nsectors = info->d_secpertrack; 383 lp->d_ntracks = info->d_nheads; 384 lp->d_secpercyl = info->d_secpercyl; 385 lp->d_secsize = info->d_media_blksize; 386 387 if (sp) 388 lp->d_secperunit = (u_int)sp->ds_size; 389 else 390 lp->d_secperunit = (u_int)info->d_media_blocks; 391 392 if (lp->d_typename[0] == '\0') 393 strncpy(lp->d_typename, "amnesiac", sizeof(lp->d_typename)); 394 if (lp->d_packname[0] == '\0') 395 strncpy(lp->d_packname, "fictitious", sizeof(lp->d_packname)); 396 if (lp->d_nsectors == 0) 397 lp->d_nsectors = 32; 398 if (lp->d_ntracks == 0) 399 lp->d_ntracks = 64; 400 lp->d_secpercyl = lp->d_nsectors * lp->d_ntracks; 401 lp->d_ncylinders = lp->d_secperunit / lp->d_secpercyl; 402 if (lp->d_rpm == 0) 403 lp->d_rpm = 3600; 404 if (lp->d_interleave == 0) 405 lp->d_interleave = 1; 406 if (lp->d_npartitions < RAW_PART + 1) 407 lp->d_npartitions = MAXPARTITIONS32; 408 if (lp->d_bbsize == 0) 409 lp->d_bbsize = BBSIZE; 410 if (lp->d_sbsize == 0) 411 lp->d_sbsize = SBSIZE; 412 413 /* 414 * Used by various devices to create a compatibility slice which 415 * allows us to mount root from devices which do not have a 416 * disklabel. Particularly: CDs. 417 */ 418 lp->d_partitions[RAW_PART].p_size = lp->d_secperunit; 419 if (info->d_dsflags & DSO_COMPATPARTA) { 420 lp->d_partitions[0].p_size = lp->d_secperunit; 421 lp->d_partitions[0].p_fstype = FS_OTHER; 422 } 423 lp->d_magic = DISKMAGIC32; 424 lp->d_magic2 = DISKMAGIC32; 425 lp->d_checksum = dkcksum32(lp); 426 res.lab32 = lp; 427 return (res); 428 } 429 430 static void 431 l32_makevirginlabel(disklabel_t lpx, struct diskslices *ssp, 432 struct diskslice *sp, struct disk_info *info) 433 { 434 struct disklabel32 *lp = lpx.lab32; 435 struct partition32 *pp; 436 disklabel_t template; 437 438 template = l32_clone_label(info, NULL); 439 bcopy(template.opaque, lp, sizeof(struct disklabel32)); 440 441 lp->d_magic = DISKMAGIC32; 442 lp->d_magic2 = DISKMAGIC32; 443 444 lp->d_npartitions = MAXPARTITIONS32; 445 if (lp->d_interleave == 0) 446 lp->d_interleave = 1; 447 if (lp->d_rpm == 0) 448 lp->d_rpm = 3600; 449 if (lp->d_nsectors == 0) /* sectors per track */ 450 lp->d_nsectors = 32; 451 if (lp->d_ntracks == 0) /* heads */ 452 lp->d_ntracks = 64; 453 lp->d_ncylinders = 0; 454 lp->d_bbsize = BBSIZE; 455 lp->d_sbsize = SBSIZE; 456 457 /* 458 * If the slice or GPT partition is really small we could 459 * wind up with an absurd calculation for ncylinders. 460 */ 461 while (lp->d_ncylinders < 4) { 462 if (lp->d_ntracks > 1) 463 lp->d_ntracks >>= 1; 464 else if (lp->d_nsectors > 1) 465 lp->d_nsectors >>= 1; 466 else 467 break; 468 lp->d_secpercyl = lp->d_nsectors * lp->d_ntracks; 469 lp->d_ncylinders = sp->ds_size / lp->d_secpercyl; 470 } 471 472 /* 473 * Set or Modify the partition sizes to accomodate the slice, 474 * since we started with a copy of the virgin label stored 475 * in the whole-disk-slice and we are probably not a 476 * whole-disk slice. 477 */ 478 lp->d_secperunit = sp->ds_size; 479 pp = &lp->d_partitions[RAW_PART]; 480 pp->p_offset = 0; 481 pp->p_size = lp->d_secperunit; 482 if (info->d_dsflags & DSO_COMPATPARTA) { 483 pp = &lp->d_partitions[0]; 484 pp->p_offset = 0; 485 pp->p_size = lp->d_secperunit; 486 pp->p_fstype = FS_OTHER; 487 } 488 lp->d_checksum = 0; 489 lp->d_checksum = dkcksum32(lp); 490 491 kfree(template.opaque, M_DEVBUF); 492 } 493 494 static const char * 495 l32_fixlabel(const char *sname, struct diskslice *sp, 496 disklabel_t lpx, int writeflag) 497 { 498 struct disklabel32 *lp; 499 struct partition32 *pp; 500 u_int64_t start; 501 u_int64_t end; 502 u_int64_t offset; 503 int part; 504 int warned; 505 506 lp = lpx.lab32; 507 508 /* These errors "can't happen" so don't bother reporting details. */ 509 if (lp->d_magic != DISKMAGIC32 || lp->d_magic2 != DISKMAGIC32) 510 return ("fixlabel: invalid magic"); 511 if (dkcksum32(lp) != 0) 512 return ("fixlabel: invalid checksum"); 513 514 pp = &lp->d_partitions[RAW_PART]; 515 516 /* 517 * What a mess. For ages old backwards compatibility the disklabel 518 * on-disk stores absolute offsets instead of slice-relative offsets. 519 * So fix it up when reading, writing, or snooping. 520 * 521 * The in-core label is always slice-relative. 522 */ 523 if (writeflag) { 524 start = 0; 525 offset = sp->ds_offset; 526 } else { 527 start = sp->ds_offset; 528 offset = -sp->ds_offset; 529 } 530 if (pp->p_offset != start) { 531 if (sname != NULL) { 532 kprintf( 533 "%s: rejecting BSD label: raw partition offset != slice offset\n", 534 sname); 535 slice_info(sname, sp); 536 partition_info(sname, RAW_PART, pp); 537 } 538 return ("fixlabel: raw partition offset != slice offset"); 539 } 540 if (pp->p_size != sp->ds_size) { 541 if (sname != NULL) { 542 kprintf("%s: raw partition size != slice size\n", sname); 543 slice_info(sname, sp); 544 partition_info(sname, RAW_PART, pp); 545 } 546 if (pp->p_size > sp->ds_size) { 547 if (sname == NULL) 548 return ("fixlabel: raw partition size > slice size"); 549 kprintf("%s: truncating raw partition\n", sname); 550 pp->p_size = sp->ds_size; 551 } 552 } 553 end = start + sp->ds_size; 554 if (start > end) 555 return ("fixlabel: slice wraps"); 556 if (lp->d_secpercyl <= 0) 557 return ("fixlabel: d_secpercyl <= 0"); 558 pp -= RAW_PART; 559 warned = FALSE; 560 for (part = 0; part < lp->d_npartitions; part++, pp++) { 561 if (pp->p_offset != 0 || pp->p_size != 0) { 562 if (pp->p_offset < start 563 || pp->p_offset + pp->p_size > end 564 || pp->p_offset + pp->p_size < pp->p_offset) { 565 if (sname != NULL) { 566 kprintf( 567 "%s: rejecting partition in BSD label: it isn't entirely within the slice\n", 568 sname); 569 if (!warned) { 570 slice_info(sname, sp); 571 warned = TRUE; 572 } 573 partition_info(sname, part, pp); 574 } 575 /* XXX else silently discard junk. */ 576 bzero(pp, sizeof *pp); 577 } else { 578 pp->p_offset += offset; 579 } 580 } 581 } 582 lp->d_ncylinders = sp->ds_size / lp->d_secpercyl; 583 lp->d_secperunit = sp->ds_size; 584 lp->d_checksum = 0; 585 lp->d_checksum = dkcksum32(lp); 586 return (NULL); 587 } 588 589 /* 590 * Set the number of blocks at the beginning of the slice which have 591 * been reserved for label operations. This area will be write-protected 592 * when accessed via the slice. 593 */ 594 static void 595 l32_adjust_label_reserved(struct diskslices *ssp, int slice, 596 struct diskslice *sp) 597 { 598 /*struct disklabel32 *lp = sp->ds_label.lab32;*/ 599 sp->ds_reserved = SBSIZE / ssp->dss_secsize; 600 } 601 602 static void 603 partition_info(const char *sname, int part, struct partition32 *pp) 604 { 605 kprintf("%s%c: start %lu, end %lu, size %lu\n", sname, 'a' + part, 606 (u_long)pp->p_offset, (u_long)(pp->p_offset + pp->p_size - 1), 607 (u_long)pp->p_size); 608 } 609 610 static void 611 slice_info(const char *sname, struct diskslice *sp) 612 { 613 kprintf("%s: start %llu, end %llu, size %llu\n", sname, 614 (long long)sp->ds_offset, 615 (long long)sp->ds_offset + sp->ds_size - 1, 616 (long long)sp->ds_size); 617 } 618 619 struct disklabel_ops disklabel32_ops = { 620 .labelsize = sizeof(struct disklabel32), 621 .op_readdisklabel = l32_readdisklabel, 622 .op_setdisklabel = l32_setdisklabel, 623 .op_writedisklabel = l32_writedisklabel, 624 .op_clone_label = l32_clone_label, 625 .op_adjust_label_reserved = l32_adjust_label_reserved, 626 .op_getpartbounds = l32_getpartbounds, 627 .op_loadpartinfo = l32_loadpartinfo, 628 .op_getnumparts = l32_getnumparts, 629 .op_makevirginlabel = l32_makevirginlabel 630 }; 631 632