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9529 libefi: efi_alloc_and_read should check for PMBR
[unleashed.git] / usr / src / lib / libefi / common / rdwr_efi.c
bloba878cb50d2894ccdbc761856f34769c1e6e7c472
1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright 2015 Nexenta Systems, Inc. All rights reserved.
25 * Copyright 2014 Toomas Soome <tsoome@me.com>
26 * Copyright 2018 OmniOS Community Edition (OmniOSce) Association.
27 */
28
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <errno.h>
32 #include <strings.h>
33 #include <unistd.h>
34 #include <smbios.h>
35 #include <uuid/uuid.h>
36 #include <libintl.h>
37 #include <sys/types.h>
38 #include <sys/dkio.h>
39 #include <sys/vtoc.h>
40 #include <sys/mhd.h>
41 #include <sys/param.h>
42 #include <sys/dktp/fdisk.h>
43 #include <sys/efi_partition.h>
44 #include <sys/byteorder.h>
45 #include <sys/ddi.h>
46
47 static struct uuid_to_ptag {
48 struct uuid uuid;
49 } conversion_array[] = {
50 { EFI_UNUSED },
51 { EFI_BOOT },
52 { EFI_ROOT },
53 { EFI_SWAP },
54 { EFI_USR },
55 { EFI_BACKUP },
56 { 0 }, /* STAND is never used */
57 { EFI_VAR },
58 { EFI_HOME },
59 { EFI_ALTSCTR },
60 { 0 }, /* CACHE is never used */
61 { EFI_RESERVED },
62 { EFI_SYSTEM },
63 { EFI_LEGACY_MBR },
64 { EFI_SYMC_PUB },
65 { EFI_SYMC_CDS },
66 { EFI_MSFT_RESV },
67 { EFI_DELL_BASIC },
68 { EFI_DELL_RAID },
69 { EFI_DELL_SWAP },
70 { EFI_DELL_LVM },
71 { EFI_DELL_RESV },
72 { EFI_AAPL_HFS },
73 { EFI_AAPL_UFS },
74 { EFI_BIOS_BOOT },
75 { EFI_FREEBSD_BOOT },
76 { EFI_FREEBSD_SWAP },
77 { EFI_FREEBSD_UFS },
78 { EFI_FREEBSD_VINUM },
79 { EFI_FREEBSD_ZFS }
80 };
81
82 /*
83 * Default vtoc information for non-SVr4 partitions
84 */
85 struct dk_map2 default_vtoc_map[NDKMAP] = {
86 { V_ROOT, 0 }, /* a - 0 */
87 { V_SWAP, V_UNMNT }, /* b - 1 */
88 { V_BACKUP, V_UNMNT }, /* c - 2 */
89 { V_UNASSIGNED, 0 }, /* d - 3 */
90 { V_UNASSIGNED, 0 }, /* e - 4 */
91 { V_UNASSIGNED, 0 }, /* f - 5 */
92 { V_USR, 0 }, /* g - 6 */
93 { V_UNASSIGNED, 0 }, /* h - 7 */
94
95 #if defined(_SUNOS_VTOC_16)
96
97 #if defined(i386) || defined(__amd64)
98 { V_BOOT, V_UNMNT }, /* i - 8 */
99 { V_ALTSCTR, 0 }, /* j - 9 */
100
101 #else
102 #error No VTOC format defined.
103 #endif /* defined(i386) */
104
105 { V_UNASSIGNED, 0 }, /* k - 10 */
106 { V_UNASSIGNED, 0 }, /* l - 11 */
107 { V_UNASSIGNED, 0 }, /* m - 12 */
108 { V_UNASSIGNED, 0 }, /* n - 13 */
109 { V_UNASSIGNED, 0 }, /* o - 14 */
110 { V_UNASSIGNED, 0 }, /* p - 15 */
111 #endif /* defined(_SUNOS_VTOC_16) */
112 };
113
114 #ifdef DEBUG
115 int efi_debug = 1;
116 #else
117 int efi_debug = 0;
118 #endif
119
120 #define EFI_FIXES_DB "/usr/share/hwdata/efi.fixes"
121
122 extern unsigned int efi_crc32(const unsigned char *, unsigned int);
123 static int efi_read(int, struct dk_gpt *);
124
125 static int
126 read_disk_info(int fd, diskaddr_t *capacity, uint_t *lbsize)
127 {
128 struct dk_minfo disk_info;
129
130 if ((ioctl(fd, DKIOCGMEDIAINFO, (caddr_t)&disk_info)) == -1)
131 return (errno);
132 *capacity = disk_info.dki_capacity;
133 *lbsize = disk_info.dki_lbsize;
134 return (0);
135 }
136
137 /*
138 * the number of blocks the EFI label takes up (round up to nearest
139 * block)
140 */
141 #define NBLOCKS(p, l) (1 + ((((p) * (int)sizeof (efi_gpe_t)) + \
142 ((l) - 1)) / (l)))
143 /* number of partitions -- limited by what we can malloc */
144 #define MAX_PARTS ((4294967295UL - sizeof (struct dk_gpt)) / \
145 sizeof (struct dk_part))
146
147 int
148 efi_alloc_and_init(int fd, uint32_t nparts, struct dk_gpt **vtoc)
149 {
150 diskaddr_t capacity;
151 uint_t lbsize;
152 uint_t nblocks;
153 size_t length;
154 struct dk_gpt *vptr;
155 struct uuid uuid;
156
157 if (read_disk_info(fd, &capacity, &lbsize) != 0) {
158 if (efi_debug)
159 (void) fprintf(stderr,
160 "couldn't read disk information\n");
161 return (-1);
162 }
163
164 nblocks = NBLOCKS(nparts, lbsize);
165 if ((nblocks * lbsize) < EFI_MIN_ARRAY_SIZE + lbsize) {
166 /* 16K plus one block for the GPT */
167 nblocks = EFI_MIN_ARRAY_SIZE / lbsize + 1;
168 }
169
170 if (nparts > MAX_PARTS) {
171 if (efi_debug) {
172 (void) fprintf(stderr,
173 "the maximum number of partitions supported is %lu\n",
174 MAX_PARTS);
175 }
176 return (-1);
177 }
178
179 length = sizeof (struct dk_gpt) +
180 sizeof (struct dk_part) * (nparts - 1);
181
182 if ((*vtoc = calloc(length, 1)) == NULL)
183 return (-1);
184
185 vptr = *vtoc;
186
187 vptr->efi_version = EFI_VERSION_CURRENT;
188 vptr->efi_lbasize = lbsize;
189 vptr->efi_nparts = nparts;
190 /*
191 * add one block here for the PMBR; on disks with a 512 byte
192 * block size and 128 or fewer partitions, efi_first_u_lba
193 * should work out to "34"
194 */
195 vptr->efi_first_u_lba = nblocks + 1;
196 vptr->efi_last_lba = capacity - 1;
197 vptr->efi_altern_lba = capacity -1;
198 vptr->efi_last_u_lba = vptr->efi_last_lba - nblocks;
199
200 (void) uuid_generate((uchar_t *)&uuid);
201 UUID_LE_CONVERT(vptr->efi_disk_uguid, uuid);
202 return (0);
203 }
204
205 /*
206 * Read EFI - return partition number upon success.
207 */
208 int
209 efi_alloc_and_read(int fd, struct dk_gpt **vtoc)
210 {
211 int rval;
212 uint32_t nparts;
213 int length;
214 struct mboot *mbr;
215 struct ipart *ipart;
216 diskaddr_t capacity;
217 uint_t lbsize;
218 int i;
219
220 if (read_disk_info(fd, &capacity, &lbsize) != 0)
221 return (VT_ERROR);
222
223 if ((mbr = calloc(lbsize, 1)) == NULL)
224 return (VT_ERROR);
225
226 if ((ioctl(fd, DKIOCGMBOOT, (caddr_t)mbr)) == -1) {
227 free(mbr);
228 return (VT_ERROR);
229 }
230
231 if (mbr->signature != MBB_MAGIC) {
232 free(mbr);
233 return (VT_EINVAL);
234 }
235 ipart = (struct ipart *)(uintptr_t)mbr->parts;
236
237 /* Check if we have partition with ID EFI_PMBR */
238 for (i = 0; i < FD_NUMPART; i++) {
239 if (ipart[i].systid == EFI_PMBR)
240 break;
241 }
242 free(mbr);
243 if (i == FD_NUMPART)
244 return (VT_EINVAL);
245
246 /* figure out the number of entries that would fit into 16K */
247 nparts = EFI_MIN_ARRAY_SIZE / sizeof (efi_gpe_t);
248 length = (int) sizeof (struct dk_gpt) +
249 (int) sizeof (struct dk_part) * (nparts - 1);
250 if ((*vtoc = calloc(length, 1)) == NULL)
251 return (VT_ERROR);
252
253 (*vtoc)->efi_nparts = nparts;
254 rval = efi_read(fd, *vtoc);
255
256 if ((rval == VT_EINVAL) && (*vtoc)->efi_nparts > nparts) {
257 void *tmp;
258 length = (int) sizeof (struct dk_gpt) +
259 (int) sizeof (struct dk_part) *
260 ((*vtoc)->efi_nparts - 1);
261 nparts = (*vtoc)->efi_nparts;
262 if ((tmp = realloc(*vtoc, length)) == NULL) {
263 free (*vtoc);
264 *vtoc = NULL;
265 return (VT_ERROR);
266 } else {
267 *vtoc = tmp;
268 rval = efi_read(fd, *vtoc);
269 }
270 }
271
272 if (rval < 0) {
273 if (efi_debug) {
274 (void) fprintf(stderr,
275 "read of EFI table failed, rval=%d\n", rval);
276 }
277 free (*vtoc);
278 *vtoc = NULL;
279 }
280
281 return (rval);
282 }
283
284 static int
285 efi_ioctl(int fd, int cmd, dk_efi_t *dk_ioc)
286 {
287 void *data = dk_ioc->dki_data;
288 int error;
289
290 dk_ioc->dki_data_64 = (uint64_t)(uintptr_t)data;
291 error = ioctl(fd, cmd, (void *)dk_ioc);
292 dk_ioc->dki_data = data;
293
294 return (error);
295 }
296
297 static int
298 check_label(int fd, dk_efi_t *dk_ioc)
299 {
300 efi_gpt_t *efi;
301 uint_t crc;
302
303 if (efi_ioctl(fd, DKIOCGETEFI, dk_ioc) == -1) {
304 switch (errno) {
305 case EIO:
306 return (VT_EIO);
307 default:
308 return (VT_ERROR);
309 }
310 }
311 efi = dk_ioc->dki_data;
312 if (efi->efi_gpt_Signature != LE_64(EFI_SIGNATURE)) {
313 if (efi_debug)
314 (void) fprintf(stderr,
315 "Bad EFI signature: 0x%llx != 0x%llx\n",
316 (long long)efi->efi_gpt_Signature,
317 (long long)LE_64(EFI_SIGNATURE));
318 return (VT_EINVAL);
319 }
320
321 /*
322 * check CRC of the header; the size of the header should
323 * never be larger than one block
324 */
325 crc = efi->efi_gpt_HeaderCRC32;
326 efi->efi_gpt_HeaderCRC32 = 0;
327
328 if (((len_t)LE_32(efi->efi_gpt_HeaderSize) > dk_ioc->dki_length) ||
329 crc != LE_32(efi_crc32((unsigned char *)efi,
330 LE_32(efi->efi_gpt_HeaderSize)))) {
331 if (efi_debug)
332 (void) fprintf(stderr,
333 "Bad EFI CRC: 0x%x != 0x%x\n",
334 crc,
335 LE_32(efi_crc32((unsigned char *)efi,
336 sizeof (struct efi_gpt))));
337 return (VT_EINVAL);
338 }
339
340 return (0);
341 }
342
343 static int
344 efi_read(int fd, struct dk_gpt *vtoc)
345 {
346 int i, j;
347 int label_len;
348 int rval = 0;
349 int vdc_flag = 0;
350 struct dk_minfo disk_info;
351 dk_efi_t dk_ioc;
352 efi_gpt_t *efi;
353 efi_gpe_t *efi_parts;
354 struct dk_cinfo dki_info;
355 uint32_t user_length;
356 boolean_t legacy_label = B_FALSE;
357
358 /*
359 * get the partition number for this file descriptor.
360 */
361 if (ioctl(fd, DKIOCINFO, (caddr_t)&dki_info) == -1) {
362 if (efi_debug) {
363 (void) fprintf(stderr, "DKIOCINFO errno 0x%x\n", errno);
364 }
365 switch (errno) {
366 case EIO:
367 return (VT_EIO);
368 case EINVAL:
369 return (VT_EINVAL);
370 default:
371 return (VT_ERROR);
372 }
373 }
374
375 if ((strncmp(dki_info.dki_cname, "vdc", 4) == 0) &&
376 (strncmp(dki_info.dki_dname, "vdc", 4) == 0)) {
377 /*
378 * The controller and drive name "vdc" (virtual disk client)
379 * indicates a LDoms virtual disk.
380 */
381 vdc_flag++;
382 }
383
384 /* get the LBA size */
385 if (ioctl(fd, DKIOCGMEDIAINFO, (caddr_t)&disk_info) == -1) {
386 if (efi_debug) {
387 (void) fprintf(stderr,
388 "assuming LBA 512 bytes %d\n",
389 errno);
390 }
391 disk_info.dki_lbsize = DEV_BSIZE;
392 }
393 if (disk_info.dki_lbsize == 0) {
394 if (efi_debug) {
395 (void) fprintf(stderr,
396 "efi_read: assuming LBA 512 bytes\n");
397 }
398 disk_info.dki_lbsize = DEV_BSIZE;
399 }
400 /*
401 * Read the EFI GPT to figure out how many partitions we need
402 * to deal with.
403 */
404 dk_ioc.dki_lba = 1;
405 if (NBLOCKS(vtoc->efi_nparts, disk_info.dki_lbsize) < 34) {
406 label_len = EFI_MIN_ARRAY_SIZE + disk_info.dki_lbsize;
407 } else {
408 label_len = vtoc->efi_nparts * (int) sizeof (efi_gpe_t) +
409 disk_info.dki_lbsize;
410 if (label_len % disk_info.dki_lbsize) {
411 /* pad to physical sector size */
412 label_len += disk_info.dki_lbsize;
413 label_len &= ~(disk_info.dki_lbsize - 1);
414 }
415 }
416
417 if ((dk_ioc.dki_data = calloc(label_len, 1)) == NULL)
418 return (VT_ERROR);
419
420 dk_ioc.dki_length = disk_info.dki_lbsize;
421 user_length = vtoc->efi_nparts;
422 efi = dk_ioc.dki_data;
423 if ((rval = check_label(fd, &dk_ioc)) == VT_EINVAL) {
424 /*
425 * No valid label here; try the alternate. Note that here
426 * we just read GPT header and save it into dk_ioc.data,
427 * Later, we will read GUID partition entry array if we
428 * can get valid GPT header.
429 */
430
431 /*
432 * This is a workaround for legacy systems. In the past, the
433 * last sector of SCSI disk was invisible on x86 platform. At
434 * that time, backup label was saved on the next to the last
435 * sector. It is possible for users to move a disk from previous
436 * solaris system to present system. Here, we attempt to search
437 * legacy backup EFI label first.
438 */
439 dk_ioc.dki_lba = disk_info.dki_capacity - 2;
440 dk_ioc.dki_length = disk_info.dki_lbsize;
441 rval = check_label(fd, &dk_ioc);
442 if (rval == VT_EINVAL) {
443 /*
444 * we didn't find legacy backup EFI label, try to
445 * search backup EFI label in the last block.
446 */
447 dk_ioc.dki_lba = disk_info.dki_capacity - 1;
448 dk_ioc.dki_length = disk_info.dki_lbsize;
449 rval = check_label(fd, &dk_ioc);
450 if (rval == 0) {
451 legacy_label = B_TRUE;
452 if (efi_debug)
453 (void) fprintf(stderr,
454 "efi_read: primary label corrupt; "
455 "using EFI backup label located on"
456 " the last block\n");
457 }
458 } else {
459 if ((efi_debug) && (rval == 0))
460 (void) fprintf(stderr, "efi_read: primary label"
461 " corrupt; using legacy EFI backup label "
462 " located on the next to last block\n");
463 }
464
465 if (rval == 0) {
466 dk_ioc.dki_lba = LE_64(efi->efi_gpt_PartitionEntryLBA);
467 vtoc->efi_flags |= EFI_GPT_PRIMARY_CORRUPT;
468 vtoc->efi_nparts =
469 LE_32(efi->efi_gpt_NumberOfPartitionEntries);
470 /*
471 * Partition tables are between backup GPT header
472 * table and ParitionEntryLBA (the starting LBA of
473 * the GUID partition entries array). Now that we
474 * already got valid GPT header and saved it in
475 * dk_ioc.dki_data, we try to get GUID partition
476 * entry array here.
477 */
478 /* LINTED */
479 dk_ioc.dki_data = (efi_gpt_t *)((char *)dk_ioc.dki_data
480 + disk_info.dki_lbsize);
481 if (legacy_label)
482 dk_ioc.dki_length = disk_info.dki_capacity - 1 -
483 dk_ioc.dki_lba;
484 else
485 dk_ioc.dki_length = disk_info.dki_capacity - 2 -
486 dk_ioc.dki_lba;
487 dk_ioc.dki_length *= disk_info.dki_lbsize;
488 if (dk_ioc.dki_length >
489 ((len_t)label_len - sizeof (*dk_ioc.dki_data))) {
490 rval = VT_EINVAL;
491 } else {
492 /*
493 * read GUID partition entry array
494 */
495 rval = efi_ioctl(fd, DKIOCGETEFI, &dk_ioc);
496 }
497 }
498
499 } else if (rval == 0) {
500
501 dk_ioc.dki_lba = LE_64(efi->efi_gpt_PartitionEntryLBA);
502 /* LINTED */
503 dk_ioc.dki_data = (efi_gpt_t *)((char *)dk_ioc.dki_data
504 + disk_info.dki_lbsize);
505 dk_ioc.dki_length = label_len - disk_info.dki_lbsize;
506 rval = efi_ioctl(fd, DKIOCGETEFI, &dk_ioc);
507
508 } else if (vdc_flag && rval == VT_ERROR && errno == EINVAL) {
509 /*
510 * When the device is a LDoms virtual disk, the DKIOCGETEFI
511 * ioctl can fail with EINVAL if the virtual disk backend
512 * is a ZFS volume serviced by a domain running an old version
513 * of Solaris. This is because the DKIOCGETEFI ioctl was
514 * initially incorrectly implemented for a ZFS volume and it
515 * expected the GPT and GPE to be retrieved with a single ioctl.
516 * So we try to read the GPT and the GPE using that old style
517 * ioctl.
518 */
519 dk_ioc.dki_lba = 1;
520 dk_ioc.dki_length = label_len;
521 rval = check_label(fd, &dk_ioc);
522 }
523
524 if (rval < 0) {
525 free(efi);
526 return (rval);
527 }
528
529 /* LINTED -- always longlong aligned */
530 efi_parts = (efi_gpe_t *)(((char *)efi) + disk_info.dki_lbsize);
531
532 /*
533 * Assemble this into a "dk_gpt" struct for easier
534 * digestibility by applications.
535 */
536 vtoc->efi_version = LE_32(efi->efi_gpt_Revision);
537 vtoc->efi_nparts = LE_32(efi->efi_gpt_NumberOfPartitionEntries);
538 vtoc->efi_part_size = LE_32(efi->efi_gpt_SizeOfPartitionEntry);
539 vtoc->efi_lbasize = disk_info.dki_lbsize;
540 vtoc->efi_last_lba = disk_info.dki_capacity - 1;
541 vtoc->efi_first_u_lba = LE_64(efi->efi_gpt_FirstUsableLBA);
542 vtoc->efi_last_u_lba = LE_64(efi->efi_gpt_LastUsableLBA);
543 vtoc->efi_altern_lba = LE_64(efi->efi_gpt_AlternateLBA);
544 UUID_LE_CONVERT(vtoc->efi_disk_uguid, efi->efi_gpt_DiskGUID);
545
546 /*
547 * If the array the user passed in is too small, set the length
548 * to what it needs to be and return
549 */
550 if (user_length < vtoc->efi_nparts) {
551 return (VT_EINVAL);
552 }
553
554 for (i = 0; i < vtoc->efi_nparts; i++) {
555
556 UUID_LE_CONVERT(vtoc->efi_parts[i].p_guid,
557 efi_parts[i].efi_gpe_PartitionTypeGUID);
558
559 for (j = 0;
560 j < sizeof (conversion_array)
561 / sizeof (struct uuid_to_ptag); j++) {
562
563 if (bcmp(&vtoc->efi_parts[i].p_guid,
564 &conversion_array[j].uuid,
565 sizeof (struct uuid)) == 0) {
566 vtoc->efi_parts[i].p_tag = j;
567 break;
568 }
569 }
570 if (vtoc->efi_parts[i].p_tag == V_UNASSIGNED)
571 continue;
572 vtoc->efi_parts[i].p_flag =
573 LE_16(efi_parts[i].efi_gpe_Attributes.PartitionAttrs);
574 vtoc->efi_parts[i].p_start =
575 LE_64(efi_parts[i].efi_gpe_StartingLBA);
576 vtoc->efi_parts[i].p_size =
577 LE_64(efi_parts[i].efi_gpe_EndingLBA) -
578 vtoc->efi_parts[i].p_start + 1;
579 for (j = 0; j < EFI_PART_NAME_LEN; j++) {
580 vtoc->efi_parts[i].p_name[j] =
581 (uchar_t)LE_16(
582 efi_parts[i].efi_gpe_PartitionName[j]);
583 }
584
585 UUID_LE_CONVERT(vtoc->efi_parts[i].p_uguid,
586 efi_parts[i].efi_gpe_UniquePartitionGUID);
587 }
588 free(efi);
589
590 return (dki_info.dki_partition);
591 }
592
593 static void
594 hardware_workarounds(int *slot, int *active)
595 {
596 smbios_struct_t s_sys, s_mb;
597 smbios_info_t sys, mb;
598 smbios_hdl_t *shp;
599 char buf[0x400];
600 FILE *fp;
601 int err;
602
603 if ((fp = fopen(EFI_FIXES_DB, "rF")) == NULL)
604 return;
605
606 if ((shp = smbios_open(NULL, SMB_VERSION, 0, &err)) == NULL) {
607 if (efi_debug)
608 (void) fprintf(stderr,
609 "libefi failed to load SMBIOS: %s\n",
610 smbios_errmsg(err));
611 (void) fclose(fp);
612 return;
613 }
614
615 if (smbios_lookup_type(shp, SMB_TYPE_SYSTEM, &s_sys) == SMB_ERR ||
616 smbios_info_common(shp, s_sys.smbstr_id, &sys) == SMB_ERR)
617 (void) memset(&sys, '\0', sizeof (sys));
618 if (smbios_lookup_type(shp, SMB_TYPE_BASEBOARD, &s_mb) == SMB_ERR ||
619 smbios_info_common(shp, s_mb.smbstr_id, &mb) == SMB_ERR)
620 (void) memset(&mb, '\0', sizeof (mb));
621
622 while (fgets(buf, sizeof (buf), fp) != NULL) {
623 char *tok, *val, *end;
624
625 tok = buf + strspn(buf, " \t");
626 if (*tok == '#')
627 continue;
628 while (*tok != '\0') {
629 tok += strspn(tok, " \t");
630 if ((val = strchr(tok, '=')) == NULL)
631 break;
632 *val++ = '\0';
633 if (*val == '"')
634 end = strchr(++val, '"');
635 else
636 end = strpbrk(val, " \t\n");
637 if (end == NULL)
638 break;
639 *end++ = '\0';
640
641 if (strcmp(tok, "sys.manufacturer") == 0 &&
642 (sys.smbi_manufacturer == NULL ||
643 strcasecmp(val, sys.smbi_manufacturer)))
644 break;
645 if (strcmp(tok, "sys.product") == 0 &&
646 (sys.smbi_product == NULL ||
647 strcasecmp(val, sys.smbi_product)))
648 break;
649 if (strcmp(tok, "sys.version") == 0 &&
650 (sys.smbi_version == NULL ||
651 strcasecmp(val, sys.smbi_version)))
652 break;
653 if (strcmp(tok, "mb.manufacturer") == 0 &&
654 (mb.smbi_manufacturer == NULL ||
655 strcasecmp(val, mb.smbi_manufacturer)))
656 break;
657 if (strcmp(tok, "mb.product") == 0 &&
658 (mb.smbi_product == NULL ||
659 strcasecmp(val, mb.smbi_product)))
660 break;
661 if (strcmp(tok, "mb.version") == 0 &&
662 (mb.smbi_version == NULL ||
663 strcasecmp(val, mb.smbi_version)))
664 break;
665
666 if (strcmp(tok, "pmbr_slot") == 0) {
667 *slot = atoi(val);
668 if (*slot < 0 || *slot > 3)
669 *slot = 0;
670 if (efi_debug)
671 (void) fprintf(stderr,
672 "Using slot %d\n", *slot);
673 }
674
675 if (strcmp(tok, "pmbr_active") == 0) {
676 *active = atoi(val);
677 if (*active < 0 || *active > 1)
678 *active = 0;
679 if (efi_debug)
680 (void) fprintf(stderr,
681 "Using active %d\n", *active);
682 }
683
684 tok = end;
685 }
686 }
687 (void) fclose(fp);
688 smbios_close(shp);
689 }
690
691 /* writes a "protective" MBR */
692 static int
693 write_pmbr(int fd, struct dk_gpt *vtoc)
694 {
695 dk_efi_t dk_ioc;
696 struct mboot mb;
697 uchar_t *cp;
698 diskaddr_t size_in_lba;
699 uchar_t *buf;
700 int len, slot, active;
701
702 slot = active = 0;
703
704 hardware_workarounds(&slot, &active);
705
706 len = (vtoc->efi_lbasize == 0) ? sizeof (mb) : vtoc->efi_lbasize;
707 buf = calloc(len, 1);
708
709 /*
710 * Preserve any boot code and disk signature if the first block is
711 * already an MBR.
712 */
713 dk_ioc.dki_lba = 0;
714 dk_ioc.dki_length = len;
715 /* LINTED -- always longlong aligned */
716 dk_ioc.dki_data = (efi_gpt_t *)buf;
717 if (efi_ioctl(fd, DKIOCGETEFI, &dk_ioc) == -1) {
718 (void) memcpy(&mb, buf, sizeof (mb));
719 bzero(&mb, sizeof (mb));
720 mb.signature = LE_16(MBB_MAGIC);
721 } else {
722 (void) memcpy(&mb, buf, sizeof (mb));
723 if (mb.signature != LE_16(MBB_MAGIC)) {
724 bzero(&mb, sizeof (mb));
725 mb.signature = LE_16(MBB_MAGIC);
726 }
727 }
728
729 bzero(&mb.parts, sizeof (mb.parts));
730 cp = (uchar_t *)&mb.parts[slot * sizeof (struct ipart)];
731 /* bootable or not */
732 *cp++ = active ? ACTIVE : NOTACTIVE;
733 /* beginning CHS; 0xffffff if not representable */
734 *cp++ = 0xff;
735 *cp++ = 0xff;
736 *cp++ = 0xff;
737 /* OS type */
738 *cp++ = EFI_PMBR;
739 /* ending CHS; 0xffffff if not representable */
740 *cp++ = 0xff;
741 *cp++ = 0xff;
742 *cp++ = 0xff;
743 /* starting LBA: 1 (little endian format) by EFI definition */
744 *cp++ = 0x01;
745 *cp++ = 0x00;
746 *cp++ = 0x00;
747 *cp++ = 0x00;
748 /* ending LBA: last block on the disk (little endian format) */
749 size_in_lba = vtoc->efi_last_lba;
750 if (size_in_lba < 0xffffffff) {
751 *cp++ = (size_in_lba & 0x000000ff);
752 *cp++ = (size_in_lba & 0x0000ff00) >> 8;
753 *cp++ = (size_in_lba & 0x00ff0000) >> 16;
754 *cp++ = (size_in_lba & 0xff000000) >> 24;
755 } else {
756 *cp++ = 0xff;
757 *cp++ = 0xff;
758 *cp++ = 0xff;
759 *cp++ = 0xff;
760 }
761
762 (void) memcpy(buf, &mb, sizeof (mb));
763 /* LINTED -- always longlong aligned */
764 dk_ioc.dki_data = (efi_gpt_t *)buf;
765 dk_ioc.dki_lba = 0;
766 dk_ioc.dki_length = len;
767 if (efi_ioctl(fd, DKIOCSETEFI, &dk_ioc) == -1) {
768 free(buf);
769 switch (errno) {
770 case EIO:
771 return (VT_EIO);
772 case EINVAL:
773 return (VT_EINVAL);
774 default:
775 return (VT_ERROR);
776 }
777 }
778 free(buf);
779 return (0);
780 }
781
782 /* make sure the user specified something reasonable */
783 static int
784 check_input(struct dk_gpt *vtoc)
785 {
786 int resv_part = -1;
787 int i, j;
788 diskaddr_t istart, jstart, isize, jsize, endsect;
789
790 /*
791 * Sanity-check the input (make sure no partitions overlap)
792 */
793 for (i = 0; i < vtoc->efi_nparts; i++) {
794 /* It can't be unassigned and have an actual size */
795 if ((vtoc->efi_parts[i].p_tag == V_UNASSIGNED) &&
796 (vtoc->efi_parts[i].p_size != 0)) {
797 if (efi_debug) {
798 (void) fprintf(stderr,
799 "partition %d is \"unassigned\" but has a size of %llu",
800 i,
801 vtoc->efi_parts[i].p_size);
802 }
803 return (VT_EINVAL);
804 }
805 if (vtoc->efi_parts[i].p_tag == V_UNASSIGNED) {
806 if (uuid_is_null((uchar_t *)&vtoc->efi_parts[i].p_guid))
807 continue;
808 /* we have encountered an unknown uuid */
809 vtoc->efi_parts[i].p_tag = 0xff;
810 }
811 if (vtoc->efi_parts[i].p_tag == V_RESERVED) {
812 if (resv_part != -1) {
813 if (efi_debug) {
814 (void) fprintf(stderr,
815 "found duplicate reserved partition at %d\n",
816 i);
817 }
818 return (VT_EINVAL);
819 }
820 resv_part = i;
821 }
822 if ((vtoc->efi_parts[i].p_start < vtoc->efi_first_u_lba) ||
823 (vtoc->efi_parts[i].p_start > vtoc->efi_last_u_lba)) {
824 if (efi_debug) {
825 (void) fprintf(stderr,
826 "Partition %d starts at %llu. ",
827 i,
828 vtoc->efi_parts[i].p_start);
829 (void) fprintf(stderr,
830 "It must be between %llu and %llu.\n",
831 vtoc->efi_first_u_lba,
832 vtoc->efi_last_u_lba);
833 }
834 return (VT_EINVAL);
835 }
836 if ((vtoc->efi_parts[i].p_start +
837 vtoc->efi_parts[i].p_size <
838 vtoc->efi_first_u_lba) ||
839 (vtoc->efi_parts[i].p_start +
840 vtoc->efi_parts[i].p_size >
841 vtoc->efi_last_u_lba + 1)) {
842 if (efi_debug) {
843 (void) fprintf(stderr,
844 "Partition %d ends at %llu. ",
845 i,
846 vtoc->efi_parts[i].p_start +
847 vtoc->efi_parts[i].p_size);
848 (void) fprintf(stderr,
849 "It must be between %llu and %llu.\n",
850 vtoc->efi_first_u_lba,
851 vtoc->efi_last_u_lba);
852 }
853 return (VT_EINVAL);
854 }
855
856 for (j = 0; j < vtoc->efi_nparts; j++) {
857 isize = vtoc->efi_parts[i].p_size;
858 jsize = vtoc->efi_parts[j].p_size;
859 istart = vtoc->efi_parts[i].p_start;
860 jstart = vtoc->efi_parts[j].p_start;
861 if ((i != j) && (isize != 0) && (jsize != 0)) {
862 endsect = jstart + jsize -1;
863 if ((jstart <= istart) &&
864 (istart <= endsect)) {
865 if (efi_debug) {
866 (void) fprintf(stderr,
867 "Partition %d overlaps partition %d.",
868 i, j);
869 }
870 return (VT_EINVAL);
871 }
872 }
873 }
874 }
875 /* just a warning for now */
876 if ((resv_part == -1) && efi_debug) {
877 (void) fprintf(stderr,
878 "no reserved partition found\n");
879 }
880 return (0);
881 }
882
883 /*
884 * add all the unallocated space to the current label
885 */
886 int
887 efi_use_whole_disk(int fd)
888 {
889 struct dk_gpt *efi_label;
890 int rval;
891 int i;
892 uint_t phy_last_slice = 0;
893 diskaddr_t pl_start = 0;
894 diskaddr_t pl_size;
895
896 rval = efi_alloc_and_read(fd, &efi_label);
897 if (rval < 0) {
898 return (rval);
899 }
900
901 /* find the last physically non-zero partition */
902 for (i = 0; i < efi_label->efi_nparts - 2; i ++) {
903 if (pl_start < efi_label->efi_parts[i].p_start) {
904 pl_start = efi_label->efi_parts[i].p_start;
905 phy_last_slice = i;
906 }
907 }
908 pl_size = efi_label->efi_parts[phy_last_slice].p_size;
909
910 /*
911 * If alter_lba is 1, we are using the backup label.
912 * Since we can locate the backup label by disk capacity,
913 * there must be no unallocated space.
914 */
915 if ((efi_label->efi_altern_lba == 1) || (efi_label->efi_altern_lba
916 >= efi_label->efi_last_lba)) {
917 if (efi_debug) {
918 (void) fprintf(stderr,
919 "efi_use_whole_disk: requested space not found\n");
920 }
921 efi_free(efi_label);
922 return (VT_ENOSPC);
923 }
924
925 /*
926 * If there is space between the last physically non-zero partition
927 * and the reserved partition, just add the unallocated space to this
928 * area. Otherwise, the unallocated space is added to the last
929 * physically non-zero partition.
930 */
931 if (pl_start + pl_size - 1 == efi_label->efi_last_u_lba -
932 EFI_MIN_RESV_SIZE) {
933 efi_label->efi_parts[phy_last_slice].p_size +=
934 efi_label->efi_last_lba - efi_label->efi_altern_lba;
935 }
936
937 /*
938 * Move the reserved partition. There is currently no data in
939 * here except fabricated devids (which get generated via
940 * efi_write()). So there is no need to copy data.
941 */
942 efi_label->efi_parts[efi_label->efi_nparts - 1].p_start +=
943 efi_label->efi_last_lba - efi_label->efi_altern_lba;
944 efi_label->efi_last_u_lba += efi_label->efi_last_lba
945 - efi_label->efi_altern_lba;
946
947 rval = efi_write(fd, efi_label);
948 if (rval < 0) {
949 if (efi_debug) {
950 (void) fprintf(stderr,
951 "efi_use_whole_disk:fail to write label, rval=%d\n",
952 rval);
953 }
954 efi_free(efi_label);
955 return (rval);
956 }
957
958 efi_free(efi_label);
959 return (0);
960 }
961
962
963 /*
964 * write EFI label and backup label
965 */
966 int
967 efi_write(int fd, struct dk_gpt *vtoc)
968 {
969 dk_efi_t dk_ioc;
970 efi_gpt_t *efi;
971 efi_gpe_t *efi_parts;
972 int i, j;
973 struct dk_cinfo dki_info;
974 int nblocks;
975 diskaddr_t lba_backup_gpt_hdr;
976
977 if (ioctl(fd, DKIOCINFO, (caddr_t)&dki_info) == -1) {
978 if (efi_debug)
979 (void) fprintf(stderr, "DKIOCINFO errno 0x%x\n", errno);
980 switch (errno) {
981 case EIO:
982 return (VT_EIO);
983 case EINVAL:
984 return (VT_EINVAL);
985 default:
986 return (VT_ERROR);
987 }
988 }
989
990 if (check_input(vtoc))
991 return (VT_EINVAL);
992
993 dk_ioc.dki_lba = 1;
994 if (NBLOCKS(vtoc->efi_nparts, vtoc->efi_lbasize) < 34) {
995 dk_ioc.dki_length = EFI_MIN_ARRAY_SIZE + vtoc->efi_lbasize;
996 } else {
997 dk_ioc.dki_length = NBLOCKS(vtoc->efi_nparts,
998 vtoc->efi_lbasize) *
999 vtoc->efi_lbasize;
1000 }
1001
1002 /*
1003 * the number of blocks occupied by GUID partition entry array
1004 */
1005 nblocks = dk_ioc.dki_length / vtoc->efi_lbasize - 1;
1006
1007 /*
1008 * Backup GPT header is located on the block after GUID
1009 * partition entry array. Here, we calculate the address
1010 * for backup GPT header.
1011 */
1012 lba_backup_gpt_hdr = vtoc->efi_last_u_lba + 1 + nblocks;
1013 if ((dk_ioc.dki_data = calloc(dk_ioc.dki_length, 1)) == NULL)
1014 return (VT_ERROR);
1015
1016 efi = dk_ioc.dki_data;
1017
1018 /* stuff user's input into EFI struct */
1019 efi->efi_gpt_Signature = LE_64(EFI_SIGNATURE);
1020 efi->efi_gpt_Revision = LE_32(vtoc->efi_version); /* 0x02000100 */
1021 efi->efi_gpt_HeaderSize = LE_32(sizeof (struct efi_gpt));
1022 efi->efi_gpt_Reserved1 = 0;
1023 efi->efi_gpt_MyLBA = LE_64(1ULL);
1024 efi->efi_gpt_AlternateLBA = LE_64(lba_backup_gpt_hdr);
1025 efi->efi_gpt_FirstUsableLBA = LE_64(vtoc->efi_first_u_lba);
1026 efi->efi_gpt_LastUsableLBA = LE_64(vtoc->efi_last_u_lba);
1027 efi->efi_gpt_PartitionEntryLBA = LE_64(2ULL);
1028 efi->efi_gpt_NumberOfPartitionEntries = LE_32(vtoc->efi_nparts);
1029 efi->efi_gpt_SizeOfPartitionEntry = LE_32(sizeof (struct efi_gpe));
1030 UUID_LE_CONVERT(efi->efi_gpt_DiskGUID, vtoc->efi_disk_uguid);
1031
1032 /* LINTED -- always longlong aligned */
1033 efi_parts = (efi_gpe_t *)((char *)dk_ioc.dki_data + vtoc->efi_lbasize);
1034
1035 for (i = 0; i < vtoc->efi_nparts; i++) {
1036 for (j = 0;
1037 j < sizeof (conversion_array) /
1038 sizeof (struct uuid_to_ptag); j++) {
1039
1040 if (vtoc->efi_parts[i].p_tag == j) {
1041 UUID_LE_CONVERT(
1042 efi_parts[i].efi_gpe_PartitionTypeGUID,
1043 conversion_array[j].uuid);
1044 break;
1045 }
1046 }
1047
1048 if (j == sizeof (conversion_array) /
1049 sizeof (struct uuid_to_ptag)) {
1050 /*
1051 * If we didn't have a matching uuid match, bail here.
1052 * Don't write a label with unknown uuid.
1053 */
1054 if (efi_debug) {
1055 (void) fprintf(stderr,
1056 "Unknown uuid for p_tag %d\n",
1057 vtoc->efi_parts[i].p_tag);
1058 }
1059 return (VT_EINVAL);
1060 }
1061
1062 efi_parts[i].efi_gpe_StartingLBA =
1063 LE_64(vtoc->efi_parts[i].p_start);
1064 efi_parts[i].efi_gpe_EndingLBA =
1065 LE_64(vtoc->efi_parts[i].p_start +
1066 vtoc->efi_parts[i].p_size - 1);
1067 efi_parts[i].efi_gpe_Attributes.PartitionAttrs =
1068 LE_16(vtoc->efi_parts[i].p_flag);
1069 for (j = 0; j < EFI_PART_NAME_LEN; j++) {
1070 efi_parts[i].efi_gpe_PartitionName[j] =
1071 LE_16((ushort_t)vtoc->efi_parts[i].p_name[j]);
1072 }
1073 if ((vtoc->efi_parts[i].p_tag != V_UNASSIGNED) &&
1074 uuid_is_null((uchar_t *)&vtoc->efi_parts[i].p_uguid)) {
1075 (void) uuid_generate((uchar_t *)
1076 &vtoc->efi_parts[i].p_uguid);
1077 }
1078 bcopy(&vtoc->efi_parts[i].p_uguid,
1079 &efi_parts[i].efi_gpe_UniquePartitionGUID,
1080 sizeof (uuid_t));
1081 }
1082 efi->efi_gpt_PartitionEntryArrayCRC32 =
1083 LE_32(efi_crc32((unsigned char *)efi_parts,
1084 vtoc->efi_nparts * (int)sizeof (struct efi_gpe)));
1085 efi->efi_gpt_HeaderCRC32 =
1086 LE_32(efi_crc32((unsigned char *)efi, sizeof (struct efi_gpt)));
1087
1088 if (efi_ioctl(fd, DKIOCSETEFI, &dk_ioc) == -1) {
1089 free(dk_ioc.dki_data);
1090 switch (errno) {
1091 case EIO:
1092 return (VT_EIO);
1093 case EINVAL:
1094 return (VT_EINVAL);
1095 default:
1096 return (VT_ERROR);
1097 }
1098 }
1099
1100 /* write backup partition array */
1101 dk_ioc.dki_lba = vtoc->efi_last_u_lba + 1;
1102 dk_ioc.dki_length -= vtoc->efi_lbasize;
1103 /* LINTED */
1104 dk_ioc.dki_data = (efi_gpt_t *)((char *)dk_ioc.dki_data +
1105 vtoc->efi_lbasize);
1106
1107 if (efi_ioctl(fd, DKIOCSETEFI, &dk_ioc) == -1) {
1108 /*
1109 * we wrote the primary label okay, so don't fail
1110 */
1111 if (efi_debug) {
1112 (void) fprintf(stderr,
1113 "write of backup partitions to block %llu "
1114 "failed, errno %d\n",
1115 vtoc->efi_last_u_lba + 1,
1116 errno);
1117 }
1118 }
1119 /*
1120 * now swap MyLBA and AlternateLBA fields and write backup
1121 * partition table header
1122 */
1123 dk_ioc.dki_lba = lba_backup_gpt_hdr;
1124 dk_ioc.dki_length = vtoc->efi_lbasize;
1125 /* LINTED */
1126 dk_ioc.dki_data = (efi_gpt_t *)((char *)dk_ioc.dki_data -
1127 vtoc->efi_lbasize);
1128 efi->efi_gpt_AlternateLBA = LE_64(1ULL);
1129 efi->efi_gpt_MyLBA = LE_64(lba_backup_gpt_hdr);
1130 efi->efi_gpt_PartitionEntryLBA = LE_64(vtoc->efi_last_u_lba + 1);
1131 efi->efi_gpt_HeaderCRC32 = 0;
1132 efi->efi_gpt_HeaderCRC32 =
1133 LE_32(efi_crc32((unsigned char *)dk_ioc.dki_data,
1134 sizeof (struct efi_gpt)));
1135
1136 if (efi_ioctl(fd, DKIOCSETEFI, &dk_ioc) == -1) {
1137 if (efi_debug) {
1138 (void) fprintf(stderr,
1139 "write of backup header to block %llu failed, "
1140 "errno %d\n",
1141 lba_backup_gpt_hdr,
1142 errno);
1143 }
1144 }
1145 /* write the PMBR */
1146 (void) write_pmbr(fd, vtoc);
1147 free(dk_ioc.dki_data);
1148 return (0);
1149 }
1150
1151 void
1152 efi_free(struct dk_gpt *ptr)
1153 {
1154 free(ptr);
1155 }
1156
1157 /*
1158 * Input: File descriptor
1159 * Output: 1 if disk has an EFI label, or > 2TB with no VTOC or legacy MBR.
1160 * Otherwise 0.
1161 */
1162 int
1163 efi_type(int fd)
1164 {
1165 struct vtoc vtoc;
1166 struct extvtoc extvtoc;
1167
1168 if (ioctl(fd, DKIOCGEXTVTOC, &extvtoc) == -1) {
1169 if (errno == ENOTSUP)
1170 return (1);
1171 else if (errno == ENOTTY) {
1172 if (ioctl(fd, DKIOCGVTOC, &vtoc) == -1)
1173 if (errno == ENOTSUP)
1174 return (1);
1175 }
1176 }
1177 return (0);
1178 }
1179
1180 void
1181 efi_err_check(struct dk_gpt *vtoc)
1182 {
1183 int resv_part = -1;
1184 int i, j;
1185 diskaddr_t istart, jstart, isize, jsize, endsect;
1186 int overlap = 0;
1187
1188 /*
1189 * make sure no partitions overlap
1190 */
1191 for (i = 0; i < vtoc->efi_nparts; i++) {
1192 /* It can't be unassigned and have an actual size */
1193 if ((vtoc->efi_parts[i].p_tag == V_UNASSIGNED) &&
1194 (vtoc->efi_parts[i].p_size != 0)) {
1195 (void) fprintf(stderr,
1196 "partition %d is \"unassigned\" but has a size "
1197 "of %llu\n", i, vtoc->efi_parts[i].p_size);
1198 }
1199 if (vtoc->efi_parts[i].p_tag == V_UNASSIGNED) {
1200 continue;
1201 }
1202 if (vtoc->efi_parts[i].p_tag == V_RESERVED) {
1203 if (resv_part != -1) {
1204 (void) fprintf(stderr,
1205 "found duplicate reserved partition at "
1206 "%d\n", i);
1207 }
1208 resv_part = i;
1209 if (vtoc->efi_parts[i].p_size != EFI_MIN_RESV_SIZE)
1210 (void) fprintf(stderr,
1211 "Warning: reserved partition size must "
1212 "be %d sectors\n", EFI_MIN_RESV_SIZE);
1213 }
1214 if ((vtoc->efi_parts[i].p_start < vtoc->efi_first_u_lba) ||
1215 (vtoc->efi_parts[i].p_start > vtoc->efi_last_u_lba)) {
1216 (void) fprintf(stderr,
1217 "Partition %d starts at %llu\n",
1218 i,
1219 vtoc->efi_parts[i].p_start);
1220 (void) fprintf(stderr,
1221 "It must be between %llu and %llu.\n",
1222 vtoc->efi_first_u_lba,
1223 vtoc->efi_last_u_lba);
1224 }
1225 if ((vtoc->efi_parts[i].p_start +
1226 vtoc->efi_parts[i].p_size <
1227 vtoc->efi_first_u_lba) ||
1228 (vtoc->efi_parts[i].p_start +
1229 vtoc->efi_parts[i].p_size >
1230 vtoc->efi_last_u_lba + 1)) {
1231 (void) fprintf(stderr,
1232 "Partition %d ends at %llu\n",
1233 i,
1234 vtoc->efi_parts[i].p_start +
1235 vtoc->efi_parts[i].p_size);
1236 (void) fprintf(stderr,
1237 "It must be between %llu and %llu.\n",
1238 vtoc->efi_first_u_lba,
1239 vtoc->efi_last_u_lba);
1240 }
1241
1242 for (j = 0; j < vtoc->efi_nparts; j++) {
1243 isize = vtoc->efi_parts[i].p_size;
1244 jsize = vtoc->efi_parts[j].p_size;
1245 istart = vtoc->efi_parts[i].p_start;
1246 jstart = vtoc->efi_parts[j].p_start;
1247 if ((i != j) && (isize != 0) && (jsize != 0)) {
1248 endsect = jstart + jsize -1;
1249 if ((jstart <= istart) &&
1250 (istart <= endsect)) {
1251 if (!overlap) {
1252 (void) fprintf(stderr,
1253 "label error: EFI Labels do not "
1254 "support overlapping partitions\n");
1255 }
1256 (void) fprintf(stderr,
1257 "Partition %d overlaps partition "
1258 "%d.\n", i, j);
1259 overlap = 1;
1260 }
1261 }
1262 }
1263 }
1264 /* make sure there is a reserved partition */
1265 if (resv_part == -1) {
1266 (void) fprintf(stderr,
1267 "no reserved partition found\n");
1268 }
1269 }
1270
1271 /*
1272 * We need to get information necessary to construct a *new* efi
1273 * label type
1274 */
1275 int
1276 efi_auto_sense(int fd, struct dk_gpt **vtoc)
1277 {
1278
1279 int i;
1280
1281 /*
1282 * Now build the default partition table
1283 */
1284 if (efi_alloc_and_init(fd, EFI_NUMPAR, vtoc) != 0) {
1285 if (efi_debug) {
1286 (void) fprintf(stderr, "efi_alloc_and_init failed.\n");
1287 }
1288 return (-1);
1289 }
1290
1291 for (i = 0; i < min((*vtoc)->efi_nparts, V_NUMPAR); i++) {
1292 (*vtoc)->efi_parts[i].p_tag = default_vtoc_map[i].p_tag;
1293 (*vtoc)->efi_parts[i].p_flag = default_vtoc_map[i].p_flag;
1294 (*vtoc)->efi_parts[i].p_start = 0;
1295 (*vtoc)->efi_parts[i].p_size = 0;
1296 }
1297 /*
1298 * Make constants first
1299 * and variable partitions later
1300 */
1301
1302 /* root partition - s0 128 MB */
1303 (*vtoc)->efi_parts[0].p_start = 34;
1304 (*vtoc)->efi_parts[0].p_size = 262144;
1305
1306 /* partition - s1 128 MB */
1307 (*vtoc)->efi_parts[1].p_start = 262178;
1308 (*vtoc)->efi_parts[1].p_size = 262144;
1309
1310 /* partition -s2 is NOT the Backup disk */
1311 (*vtoc)->efi_parts[2].p_tag = V_UNASSIGNED;
1312
1313 /* partition -s6 /usr partition - HOG */
1314 (*vtoc)->efi_parts[6].p_start = 524322;
1315 (*vtoc)->efi_parts[6].p_size = (*vtoc)->efi_last_u_lba - 524322
1316 - (1024 * 16);
1317
1318 /* efi reserved partition - s9 16K */
1319 (*vtoc)->efi_parts[8].p_start = (*vtoc)->efi_last_u_lba - (1024 * 16);
1320 (*vtoc)->efi_parts[8].p_size = (1024 * 16);
1321 (*vtoc)->efi_parts[8].p_tag = V_RESERVED;
1322 return (0);
1323 }
Unleashed OS