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5c363129 BB |
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 | /* | |
572e2857 | 23 | * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. |
fc803849 | 24 | * Copyright 2012 Nexenta Systems, Inc. All rights reserved. |
5c363129 BB |
25 | */ |
26 | ||
27 | #include <stdio.h> | |
28 | #include <stdlib.h> | |
29 | #include <errno.h> | |
30 | #include <strings.h> | |
31 | #include <unistd.h> | |
32 | #include <uuid/uuid.h> | |
d603ed6c | 33 | #include <zlib.h> |
5c363129 BB |
34 | #include <libintl.h> |
35 | #include <sys/types.h> | |
36 | #include <sys/dkio.h> | |
37 | #include <sys/vtoc.h> | |
38 | #include <sys/mhd.h> | |
39 | #include <sys/param.h> | |
40 | #include <sys/dktp/fdisk.h> | |
41 | #include <sys/efi_partition.h> | |
42 | #include <sys/byteorder.h> | |
d603ed6c BB |
43 | #if defined(__linux__) |
44 | #include <linux/fs.h> | |
45 | #endif | |
5c363129 BB |
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 }, | |
d603ed6c | 56 | { EFI_UNUSED }, /* STAND is never used */ |
5c363129 BB |
57 | { EFI_VAR }, |
58 | { EFI_HOME }, | |
59 | { EFI_ALTSCTR }, | |
d603ed6c | 60 | { EFI_UNUSED }, /* CACHE (cachefs) is never used */ |
5c363129 BB |
61 | { EFI_RESERVED }, |
62 | { EFI_SYSTEM }, | |
63 | { EFI_LEGACY_MBR }, | |
572e2857 BB |
64 | { EFI_SYMC_PUB }, |
65 | { EFI_SYMC_CDS }, | |
5c363129 BB |
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 }, | |
fc803849 YP |
73 | { EFI_AAPL_UFS }, |
74 | { EFI_FREEBSD_BOOT }, | |
75 | { EFI_FREEBSD_SWAP }, | |
76 | { EFI_FREEBSD_UFS }, | |
77 | { EFI_FREEBSD_VINUM }, | |
917b8c5c | 78 | { EFI_FREEBSD_ZFS }, |
79 | { EFI_BIOS_BOOT }, | |
80 | { EFI_INTC_RS }, | |
81 | { EFI_SNE_BOOT }, | |
82 | { EFI_LENOVO_BOOT }, | |
83 | { EFI_MSFT_LDMM }, | |
84 | { EFI_MSFT_LDMD }, | |
85 | { EFI_MSFT_RE }, | |
86 | { EFI_IBM_GPFS }, | |
87 | { EFI_MSFT_STORAGESPACES }, | |
88 | { EFI_HPQ_DATA }, | |
89 | { EFI_HPQ_SVC }, | |
90 | { EFI_RHT_DATA }, | |
91 | { EFI_RHT_HOME }, | |
92 | { EFI_RHT_SRV }, | |
93 | { EFI_RHT_DMCRYPT }, | |
94 | { EFI_RHT_LUKS }, | |
95 | { EFI_FREEBSD_DISKLABEL }, | |
96 | { EFI_AAPL_RAID }, | |
97 | { EFI_AAPL_RAIDOFFLINE }, | |
98 | { EFI_AAPL_BOOT }, | |
99 | { EFI_AAPL_LABEL }, | |
100 | { EFI_AAPL_TVRECOVERY }, | |
101 | { EFI_AAPL_CORESTORAGE }, | |
102 | { EFI_NETBSD_SWAP }, | |
103 | { EFI_NETBSD_FFS }, | |
104 | { EFI_NETBSD_LFS }, | |
105 | { EFI_NETBSD_RAID }, | |
106 | { EFI_NETBSD_CAT }, | |
107 | { EFI_NETBSD_CRYPT }, | |
108 | { EFI_GOOG_KERN }, | |
109 | { EFI_GOOG_ROOT }, | |
110 | { EFI_GOOG_RESV }, | |
111 | { EFI_HAIKU_BFS }, | |
112 | { EFI_MIDNIGHTBSD_BOOT }, | |
113 | { EFI_MIDNIGHTBSD_DATA }, | |
114 | { EFI_MIDNIGHTBSD_SWAP }, | |
115 | { EFI_MIDNIGHTBSD_UFS }, | |
116 | { EFI_MIDNIGHTBSD_VINUM }, | |
117 | { EFI_MIDNIGHTBSD_ZFS }, | |
118 | { EFI_CEPH_JOURNAL }, | |
119 | { EFI_CEPH_DMCRYPTJOURNAL }, | |
120 | { EFI_CEPH_OSD }, | |
121 | { EFI_CEPH_DMCRYPTOSD }, | |
122 | { EFI_CEPH_CREATE }, | |
123 | { EFI_CEPH_DMCRYPTCREATE }, | |
124 | { EFI_OPENBSD_DISKLABEL }, | |
125 | { EFI_BBRY_QNX }, | |
126 | { EFI_BELL_PLAN9 }, | |
127 | { EFI_VMW_KCORE }, | |
128 | { EFI_VMW_VMFS }, | |
129 | { EFI_VMW_RESV }, | |
130 | { EFI_RHT_ROOTX86 }, | |
131 | { EFI_RHT_ROOTAMD64 }, | |
132 | { EFI_RHT_ROOTARM }, | |
133 | { EFI_RHT_ROOTARM64 }, | |
134 | { EFI_ACRONIS_SECUREZONE }, | |
135 | { EFI_ONIE_BOOT }, | |
136 | { EFI_ONIE_CONFIG }, | |
137 | { EFI_IBM_PPRPBOOT }, | |
138 | { EFI_FREEDESKTOP_BOOT } | |
5c363129 BB |
139 | }; |
140 | ||
141 | /* | |
142 | * Default vtoc information for non-SVr4 partitions | |
143 | */ | |
144 | struct dk_map2 default_vtoc_map[NDKMAP] = { | |
145 | { V_ROOT, 0 }, /* a - 0 */ | |
146 | { V_SWAP, V_UNMNT }, /* b - 1 */ | |
147 | { V_BACKUP, V_UNMNT }, /* c - 2 */ | |
148 | { V_UNASSIGNED, 0 }, /* d - 3 */ | |
149 | { V_UNASSIGNED, 0 }, /* e - 4 */ | |
150 | { V_UNASSIGNED, 0 }, /* f - 5 */ | |
151 | { V_USR, 0 }, /* g - 6 */ | |
152 | { V_UNASSIGNED, 0 }, /* h - 7 */ | |
153 | ||
154 | #if defined(_SUNOS_VTOC_16) | |
155 | ||
d7ec8d4f | 156 | #if defined(i386) || defined(__amd64) || defined(__arm) || \ |
a1bc34c0 | 157 | defined(__powerpc) || defined(__sparc) || defined(__s390__) |
5c363129 BB |
158 | { V_BOOT, V_UNMNT }, /* i - 8 */ |
159 | { V_ALTSCTR, 0 }, /* j - 9 */ | |
160 | ||
161 | #else | |
162 | #error No VTOC format defined. | |
163 | #endif /* defined(i386) */ | |
164 | ||
165 | { V_UNASSIGNED, 0 }, /* k - 10 */ | |
166 | { V_UNASSIGNED, 0 }, /* l - 11 */ | |
167 | { V_UNASSIGNED, 0 }, /* m - 12 */ | |
168 | { V_UNASSIGNED, 0 }, /* n - 13 */ | |
169 | { V_UNASSIGNED, 0 }, /* o - 14 */ | |
170 | { V_UNASSIGNED, 0 }, /* p - 15 */ | |
171 | #endif /* defined(_SUNOS_VTOC_16) */ | |
172 | }; | |
173 | ||
5c363129 | 174 | int efi_debug = 0; |
5c363129 | 175 | |
d603ed6c BB |
176 | static int efi_read(int, struct dk_gpt *); |
177 | ||
178 | /* | |
179 | * Return a 32-bit CRC of the contents of the buffer. Pre-and-post | |
180 | * one's conditioning will be handled by crc32() internally. | |
181 | */ | |
182 | static uint32_t | |
183 | efi_crc32(const unsigned char *buf, unsigned int size) | |
184 | { | |
185 | uint32_t crc = crc32(0, Z_NULL, 0); | |
186 | ||
187 | crc = crc32(crc, buf, size); | |
188 | ||
189 | return (crc); | |
190 | } | |
5c363129 BB |
191 | |
192 | static int | |
193 | read_disk_info(int fd, diskaddr_t *capacity, uint_t *lbsize) | |
194 | { | |
d603ed6c BB |
195 | int sector_size; |
196 | unsigned long long capacity_size; | |
197 | ||
d1d7e268 MK |
198 | if (ioctl(fd, BLKSSZGET, §or_size) < 0) |
199 | return (-1); | |
d603ed6c BB |
200 | |
201 | if (ioctl(fd, BLKGETSIZE64, &capacity_size) < 0) | |
202 | return (-1); | |
203 | ||
204 | *lbsize = (uint_t)sector_size; | |
205 | *capacity = (diskaddr_t)(capacity_size / sector_size); | |
206 | ||
207 | return (0); | |
208 | } | |
5c363129 | 209 | |
d603ed6c BB |
210 | static int |
211 | efi_get_info(int fd, struct dk_cinfo *dki_info) | |
212 | { | |
213 | #if defined(__linux__) | |
214 | char *path; | |
215 | char *dev_path; | |
216 | int rval = 0; | |
217 | ||
d1d7e268 | 218 | memset(dki_info, 0, sizeof (*dki_info)); |
d603ed6c BB |
219 | |
220 | path = calloc(PATH_MAX, 1); | |
221 | if (path == NULL) | |
222 | goto error; | |
223 | ||
224 | /* | |
225 | * The simplest way to get the partition number under linux is | |
226 | * to parse it out of the /dev/<disk><parition> block device name. | |
227 | * The kernel creates this using the partition number when it | |
228 | * populates /dev/ so it may be trusted. The tricky bit here is | |
229 | * that the naming convention is based on the block device type. | |
230 | * So we need to take this in to account when parsing out the | |
231 | * partition information. Another issue is that the libefi API | |
232 | * API only provides the open fd and not the file path. To handle | |
233 | * this realpath(3) is used to resolve the block device name from | |
234 | * /proc/self/fd/<fd>. Aside from the partition number we collect | |
235 | * some additional device info. | |
236 | */ | |
237 | (void) sprintf(path, "/proc/self/fd/%d", fd); | |
238 | dev_path = realpath(path, NULL); | |
239 | free(path); | |
240 | ||
241 | if (dev_path == NULL) | |
242 | goto error; | |
243 | ||
244 | if ((strncmp(dev_path, "/dev/sd", 7) == 0)) { | |
245 | strcpy(dki_info->dki_cname, "sd"); | |
246 | dki_info->dki_ctype = DKC_SCSI_CCS; | |
247 | rval = sscanf(dev_path, "/dev/%[a-zA-Z]%hu", | |
d1d7e268 MK |
248 | dki_info->dki_dname, |
249 | &dki_info->dki_partition); | |
d603ed6c BB |
250 | } else if ((strncmp(dev_path, "/dev/hd", 7) == 0)) { |
251 | strcpy(dki_info->dki_cname, "hd"); | |
252 | dki_info->dki_ctype = DKC_DIRECT; | |
253 | rval = sscanf(dev_path, "/dev/%[a-zA-Z]%hu", | |
d1d7e268 MK |
254 | dki_info->dki_dname, |
255 | &dki_info->dki_partition); | |
d603ed6c BB |
256 | } else if ((strncmp(dev_path, "/dev/md", 7) == 0)) { |
257 | strcpy(dki_info->dki_cname, "pseudo"); | |
258 | dki_info->dki_ctype = DKC_MD; | |
787c455e RY |
259 | strcpy(dki_info->dki_dname, "md"); |
260 | rval = sscanf(dev_path, "/dev/md%[0-9]p%hu", | |
261 | dki_info->dki_dname + 2, | |
d1d7e268 | 262 | &dki_info->dki_partition); |
2932b6a8 RL |
263 | } else if ((strncmp(dev_path, "/dev/vd", 7) == 0)) { |
264 | strcpy(dki_info->dki_cname, "vd"); | |
265 | dki_info->dki_ctype = DKC_MD; | |
266 | rval = sscanf(dev_path, "/dev/%[a-zA-Z]%hu", | |
d1d7e268 MK |
267 | dki_info->dki_dname, |
268 | &dki_info->dki_partition); | |
541da993 RY |
269 | } else if ((strncmp(dev_path, "/dev/xvd", 8) == 0)) { |
270 | strcpy(dki_info->dki_cname, "xvd"); | |
271 | dki_info->dki_ctype = DKC_MD; | |
272 | rval = sscanf(dev_path, "/dev/%[a-zA-Z]%hu", | |
273 | dki_info->dki_dname, | |
274 | &dki_info->dki_partition); | |
9f5ba90f RY |
275 | } else if ((strncmp(dev_path, "/dev/zd", 7) == 0)) { |
276 | strcpy(dki_info->dki_cname, "zd"); | |
277 | dki_info->dki_ctype = DKC_MD; | |
278 | rval = sscanf(dev_path, "/dev/%[a-zA-Z]%hu", | |
279 | dki_info->dki_dname, | |
280 | &dki_info->dki_partition); | |
d603ed6c BB |
281 | } else if ((strncmp(dev_path, "/dev/dm-", 8) == 0)) { |
282 | strcpy(dki_info->dki_cname, "pseudo"); | |
283 | dki_info->dki_ctype = DKC_VBD; | |
787c455e RY |
284 | strcpy(dki_info->dki_dname, "dm-"); |
285 | rval = sscanf(dev_path, "/dev/dm-%[0-9]p%hu", | |
286 | dki_info->dki_dname + 3, | |
d1d7e268 | 287 | &dki_info->dki_partition); |
d603ed6c BB |
288 | } else if ((strncmp(dev_path, "/dev/ram", 8) == 0)) { |
289 | strcpy(dki_info->dki_cname, "pseudo"); | |
290 | dki_info->dki_ctype = DKC_PCMCIA_MEM; | |
787c455e RY |
291 | strcpy(dki_info->dki_dname, "ram"); |
292 | rval = sscanf(dev_path, "/dev/ram%[0-9]p%hu", | |
293 | dki_info->dki_dname + 3, | |
d1d7e268 | 294 | &dki_info->dki_partition); |
d603ed6c BB |
295 | } else if ((strncmp(dev_path, "/dev/loop", 9) == 0)) { |
296 | strcpy(dki_info->dki_cname, "pseudo"); | |
297 | dki_info->dki_ctype = DKC_VBD; | |
787c455e RY |
298 | strcpy(dki_info->dki_dname, "loop"); |
299 | rval = sscanf(dev_path, "/dev/loop%[0-9]p%hu", | |
300 | dki_info->dki_dname + 4, | |
d1d7e268 | 301 | &dki_info->dki_partition); |
d603ed6c BB |
302 | } else { |
303 | strcpy(dki_info->dki_dname, "unknown"); | |
304 | strcpy(dki_info->dki_cname, "unknown"); | |
305 | dki_info->dki_ctype = DKC_UNKNOWN; | |
306 | } | |
307 | ||
308 | switch (rval) { | |
309 | case 0: | |
310 | errno = EINVAL; | |
311 | goto error; | |
312 | case 1: | |
313 | dki_info->dki_partition = 0; | |
314 | } | |
315 | ||
316 | free(dev_path); | |
317 | #else | |
318 | if (ioctl(fd, DKIOCINFO, (caddr_t)dki_info) == -1) | |
319 | goto error; | |
320 | #endif | |
5c363129 | 321 | return (0); |
d603ed6c BB |
322 | error: |
323 | if (efi_debug) | |
324 | (void) fprintf(stderr, "DKIOCINFO errno 0x%x\n", errno); | |
325 | ||
326 | switch (errno) { | |
327 | case EIO: | |
328 | return (VT_EIO); | |
329 | case EINVAL: | |
330 | return (VT_EINVAL); | |
331 | default: | |
332 | return (VT_ERROR); | |
333 | } | |
5c363129 BB |
334 | } |
335 | ||
336 | /* | |
337 | * the number of blocks the EFI label takes up (round up to nearest | |
338 | * block) | |
339 | */ | |
340 | #define NBLOCKS(p, l) (1 + ((((p) * (int)sizeof (efi_gpe_t)) + \ | |
341 | ((l) - 1)) / (l))) | |
342 | /* number of partitions -- limited by what we can malloc */ | |
343 | #define MAX_PARTS ((4294967295UL - sizeof (struct dk_gpt)) / \ | |
344 | sizeof (struct dk_part)) | |
345 | ||
346 | int | |
347 | efi_alloc_and_init(int fd, uint32_t nparts, struct dk_gpt **vtoc) | |
348 | { | |
d603ed6c BB |
349 | diskaddr_t capacity = 0; |
350 | uint_t lbsize = 0; | |
5c363129 BB |
351 | uint_t nblocks; |
352 | size_t length; | |
353 | struct dk_gpt *vptr; | |
354 | struct uuid uuid; | |
d603ed6c | 355 | struct dk_cinfo dki_info; |
5c363129 | 356 | |
b3b4f547 | 357 | if (read_disk_info(fd, &capacity, &lbsize) != 0) |
5c363129 | 358 | return (-1); |
b3b4f547 | 359 | |
d603ed6c | 360 | #if defined(__linux__) |
b3b4f547 | 361 | if (efi_get_info(fd, &dki_info) != 0) |
d603ed6c | 362 | return (-1); |
d603ed6c BB |
363 | |
364 | if (dki_info.dki_partition != 0) | |
365 | return (-1); | |
366 | ||
367 | if ((dki_info.dki_ctype == DKC_PCMCIA_MEM) || | |
368 | (dki_info.dki_ctype == DKC_VBD) || | |
369 | (dki_info.dki_ctype == DKC_UNKNOWN)) | |
370 | return (-1); | |
371 | #endif | |
5c363129 BB |
372 | |
373 | nblocks = NBLOCKS(nparts, lbsize); | |
374 | if ((nblocks * lbsize) < EFI_MIN_ARRAY_SIZE + lbsize) { | |
375 | /* 16K plus one block for the GPT */ | |
376 | nblocks = EFI_MIN_ARRAY_SIZE / lbsize + 1; | |
377 | } | |
378 | ||
379 | if (nparts > MAX_PARTS) { | |
380 | if (efi_debug) { | |
381 | (void) fprintf(stderr, | |
382 | "the maximum number of partitions supported is %lu\n", | |
383 | MAX_PARTS); | |
384 | } | |
385 | return (-1); | |
386 | } | |
387 | ||
388 | length = sizeof (struct dk_gpt) + | |
389 | sizeof (struct dk_part) * (nparts - 1); | |
390 | ||
391 | if ((*vtoc = calloc(length, 1)) == NULL) | |
392 | return (-1); | |
393 | ||
394 | vptr = *vtoc; | |
395 | ||
396 | vptr->efi_version = EFI_VERSION_CURRENT; | |
397 | vptr->efi_lbasize = lbsize; | |
398 | vptr->efi_nparts = nparts; | |
399 | /* | |
400 | * add one block here for the PMBR; on disks with a 512 byte | |
401 | * block size and 128 or fewer partitions, efi_first_u_lba | |
402 | * should work out to "34" | |
403 | */ | |
404 | vptr->efi_first_u_lba = nblocks + 1; | |
405 | vptr->efi_last_lba = capacity - 1; | |
406 | vptr->efi_altern_lba = capacity -1; | |
407 | vptr->efi_last_u_lba = vptr->efi_last_lba - nblocks; | |
408 | ||
409 | (void) uuid_generate((uchar_t *)&uuid); | |
410 | UUID_LE_CONVERT(vptr->efi_disk_uguid, uuid); | |
411 | return (0); | |
412 | } | |
413 | ||
414 | /* | |
415 | * Read EFI - return partition number upon success. | |
416 | */ | |
417 | int | |
418 | efi_alloc_and_read(int fd, struct dk_gpt **vtoc) | |
419 | { | |
420 | int rval; | |
421 | uint32_t nparts; | |
422 | int length; | |
423 | ||
424 | /* figure out the number of entries that would fit into 16K */ | |
425 | nparts = EFI_MIN_ARRAY_SIZE / sizeof (efi_gpe_t); | |
426 | length = (int) sizeof (struct dk_gpt) + | |
427 | (int) sizeof (struct dk_part) * (nparts - 1); | |
428 | if ((*vtoc = calloc(length, 1)) == NULL) | |
429 | return (VT_ERROR); | |
430 | ||
431 | (*vtoc)->efi_nparts = nparts; | |
432 | rval = efi_read(fd, *vtoc); | |
433 | ||
434 | if ((rval == VT_EINVAL) && (*vtoc)->efi_nparts > nparts) { | |
435 | void *tmp; | |
436 | length = (int) sizeof (struct dk_gpt) + | |
437 | (int) sizeof (struct dk_part) * | |
438 | ((*vtoc)->efi_nparts - 1); | |
439 | nparts = (*vtoc)->efi_nparts; | |
440 | if ((tmp = realloc(*vtoc, length)) == NULL) { | |
441 | free (*vtoc); | |
442 | *vtoc = NULL; | |
443 | return (VT_ERROR); | |
444 | } else { | |
445 | *vtoc = tmp; | |
446 | rval = efi_read(fd, *vtoc); | |
447 | } | |
448 | } | |
449 | ||
450 | if (rval < 0) { | |
451 | if (efi_debug) { | |
452 | (void) fprintf(stderr, | |
453 | "read of EFI table failed, rval=%d\n", rval); | |
454 | } | |
455 | free (*vtoc); | |
456 | *vtoc = NULL; | |
457 | } | |
458 | ||
459 | return (rval); | |
460 | } | |
461 | ||
462 | static int | |
463 | efi_ioctl(int fd, int cmd, dk_efi_t *dk_ioc) | |
464 | { | |
465 | void *data = dk_ioc->dki_data; | |
466 | int error; | |
d603ed6c BB |
467 | #if defined(__linux__) |
468 | diskaddr_t capacity; | |
469 | uint_t lbsize; | |
470 | ||
471 | /* | |
472 | * When the IO is not being performed in kernel as an ioctl we need | |
473 | * to know the sector size so we can seek to the proper byte offset. | |
474 | */ | |
475 | if (read_disk_info(fd, &capacity, &lbsize) == -1) { | |
476 | if (efi_debug) | |
d1d7e268 | 477 | fprintf(stderr, "unable to read disk info: %d", errno); |
d603ed6c BB |
478 | |
479 | errno = EIO; | |
d1d7e268 | 480 | return (-1); |
d603ed6c BB |
481 | } |
482 | ||
483 | switch (cmd) { | |
484 | case DKIOCGETEFI: | |
485 | if (lbsize == 0) { | |
486 | if (efi_debug) | |
487 | (void) fprintf(stderr, "DKIOCGETEFI assuming " | |
d1d7e268 | 488 | "LBA %d bytes\n", DEV_BSIZE); |
d603ed6c BB |
489 | |
490 | lbsize = DEV_BSIZE; | |
491 | } | |
492 | ||
493 | error = lseek(fd, dk_ioc->dki_lba * lbsize, SEEK_SET); | |
494 | if (error == -1) { | |
495 | if (efi_debug) | |
496 | (void) fprintf(stderr, "DKIOCGETEFI lseek " | |
d1d7e268 MK |
497 | "error: %d\n", errno); |
498 | return (error); | |
d603ed6c BB |
499 | } |
500 | ||
501 | error = read(fd, data, dk_ioc->dki_length); | |
502 | if (error == -1) { | |
503 | if (efi_debug) | |
504 | (void) fprintf(stderr, "DKIOCGETEFI read " | |
d1d7e268 MK |
505 | "error: %d\n", errno); |
506 | return (error); | |
d603ed6c | 507 | } |
5c363129 | 508 | |
d603ed6c BB |
509 | if (error != dk_ioc->dki_length) { |
510 | if (efi_debug) | |
511 | (void) fprintf(stderr, "DKIOCGETEFI short " | |
d1d7e268 | 512 | "read of %d bytes\n", error); |
d603ed6c | 513 | errno = EIO; |
d1d7e268 | 514 | return (-1); |
d603ed6c BB |
515 | } |
516 | error = 0; | |
517 | break; | |
518 | ||
519 | case DKIOCSETEFI: | |
520 | if (lbsize == 0) { | |
521 | if (efi_debug) | |
522 | (void) fprintf(stderr, "DKIOCSETEFI unknown " | |
d1d7e268 | 523 | "LBA size\n"); |
d603ed6c | 524 | errno = EIO; |
d1d7e268 | 525 | return (-1); |
d603ed6c BB |
526 | } |
527 | ||
528 | error = lseek(fd, dk_ioc->dki_lba * lbsize, SEEK_SET); | |
529 | if (error == -1) { | |
530 | if (efi_debug) | |
531 | (void) fprintf(stderr, "DKIOCSETEFI lseek " | |
d1d7e268 MK |
532 | "error: %d\n", errno); |
533 | return (error); | |
d603ed6c BB |
534 | } |
535 | ||
536 | error = write(fd, data, dk_ioc->dki_length); | |
537 | if (error == -1) { | |
538 | if (efi_debug) | |
539 | (void) fprintf(stderr, "DKIOCSETEFI write " | |
d1d7e268 MK |
540 | "error: %d\n", errno); |
541 | return (error); | |
d603ed6c BB |
542 | } |
543 | ||
544 | if (error != dk_ioc->dki_length) { | |
545 | if (efi_debug) | |
546 | (void) fprintf(stderr, "DKIOCSETEFI short " | |
d1d7e268 | 547 | "write of %d bytes\n", error); |
d603ed6c | 548 | errno = EIO; |
d1d7e268 | 549 | return (-1); |
d603ed6c BB |
550 | } |
551 | ||
552 | /* Sync the new EFI table to disk */ | |
553 | error = fsync(fd); | |
554 | if (error == -1) | |
d1d7e268 | 555 | return (error); |
d603ed6c BB |
556 | |
557 | /* Ensure any local disk cache is also flushed */ | |
558 | if (ioctl(fd, BLKFLSBUF, 0) == -1) | |
d1d7e268 | 559 | return (error); |
d603ed6c BB |
560 | |
561 | error = 0; | |
562 | break; | |
563 | ||
564 | default: | |
565 | if (efi_debug) | |
566 | (void) fprintf(stderr, "unsupported ioctl()\n"); | |
567 | ||
568 | errno = EIO; | |
d1d7e268 | 569 | return (-1); |
d603ed6c BB |
570 | } |
571 | #else | |
5c363129 BB |
572 | dk_ioc->dki_data_64 = (uint64_t)(uintptr_t)data; |
573 | error = ioctl(fd, cmd, (void *)dk_ioc); | |
574 | dk_ioc->dki_data = data; | |
d603ed6c | 575 | #endif |
5c363129 BB |
576 | return (error); |
577 | } | |
578 | ||
d1d7e268 MK |
579 | int |
580 | efi_rescan(int fd) | |
d603ed6c | 581 | { |
b5a28807 | 582 | #if defined(__linux__) |
d09a99f9 | 583 | int retry = 10; |
d603ed6c BB |
584 | int error; |
585 | ||
586 | /* Notify the kernel a devices partition table has been updated */ | |
587 | while ((error = ioctl(fd, BLKRRPART)) != 0) { | |
d09a99f9 | 588 | if ((--retry == 0) || (errno != EBUSY)) { |
d603ed6c | 589 | (void) fprintf(stderr, "the kernel failed to rescan " |
d1d7e268 | 590 | "the partition table: %d\n", errno); |
d603ed6c BB |
591 | return (-1); |
592 | } | |
d09a99f9 | 593 | usleep(50000); |
d603ed6c | 594 | } |
b5a28807 | 595 | #endif |
d603ed6c BB |
596 | |
597 | return (0); | |
598 | } | |
d603ed6c | 599 | |
5c363129 BB |
600 | static int |
601 | check_label(int fd, dk_efi_t *dk_ioc) | |
602 | { | |
603 | efi_gpt_t *efi; | |
604 | uint_t crc; | |
605 | ||
606 | if (efi_ioctl(fd, DKIOCGETEFI, dk_ioc) == -1) { | |
607 | switch (errno) { | |
608 | case EIO: | |
609 | return (VT_EIO); | |
610 | default: | |
611 | return (VT_ERROR); | |
612 | } | |
613 | } | |
614 | efi = dk_ioc->dki_data; | |
615 | if (efi->efi_gpt_Signature != LE_64(EFI_SIGNATURE)) { | |
616 | if (efi_debug) | |
617 | (void) fprintf(stderr, | |
618 | "Bad EFI signature: 0x%llx != 0x%llx\n", | |
619 | (long long)efi->efi_gpt_Signature, | |
620 | (long long)LE_64(EFI_SIGNATURE)); | |
621 | return (VT_EINVAL); | |
622 | } | |
623 | ||
624 | /* | |
625 | * check CRC of the header; the size of the header should | |
626 | * never be larger than one block | |
627 | */ | |
628 | crc = efi->efi_gpt_HeaderCRC32; | |
629 | efi->efi_gpt_HeaderCRC32 = 0; | |
7a023273 | 630 | len_t headerSize = (len_t)LE_32(efi->efi_gpt_HeaderSize); |
5c363129 | 631 | |
d1d7e268 | 632 | if (headerSize < EFI_MIN_LABEL_SIZE || headerSize > EFI_LABEL_SIZE) { |
7a023273 ZB |
633 | if (efi_debug) |
634 | (void) fprintf(stderr, | |
25df831b | 635 | "Invalid EFI HeaderSize %llu. Assuming %d.\n", |
636 | headerSize, EFI_MIN_LABEL_SIZE); | |
7a023273 ZB |
637 | } |
638 | ||
639 | if ((headerSize > dk_ioc->dki_length) || | |
640 | crc != LE_32(efi_crc32((unsigned char *)efi, headerSize))) { | |
5c363129 BB |
641 | if (efi_debug) |
642 | (void) fprintf(stderr, | |
643 | "Bad EFI CRC: 0x%x != 0x%x\n", | |
7a023273 ZB |
644 | crc, LE_32(efi_crc32((unsigned char *)efi, |
645 | headerSize))); | |
5c363129 BB |
646 | return (VT_EINVAL); |
647 | } | |
648 | ||
649 | return (0); | |
650 | } | |
651 | ||
652 | static int | |
653 | efi_read(int fd, struct dk_gpt *vtoc) | |
654 | { | |
655 | int i, j; | |
656 | int label_len; | |
657 | int rval = 0; | |
658 | int md_flag = 0; | |
659 | int vdc_flag = 0; | |
d603ed6c BB |
660 | diskaddr_t capacity = 0; |
661 | uint_t lbsize = 0; | |
5c363129 BB |
662 | struct dk_minfo disk_info; |
663 | dk_efi_t dk_ioc; | |
664 | efi_gpt_t *efi; | |
665 | efi_gpe_t *efi_parts; | |
666 | struct dk_cinfo dki_info; | |
667 | uint32_t user_length; | |
668 | boolean_t legacy_label = B_FALSE; | |
669 | ||
670 | /* | |
671 | * get the partition number for this file descriptor. | |
672 | */ | |
d603ed6c | 673 | if ((rval = efi_get_info(fd, &dki_info)) != 0) |
d1d7e268 | 674 | return (rval); |
d603ed6c | 675 | |
5c363129 BB |
676 | if ((strncmp(dki_info.dki_cname, "pseudo", 7) == 0) && |
677 | (strncmp(dki_info.dki_dname, "md", 3) == 0)) { | |
678 | md_flag++; | |
679 | } else if ((strncmp(dki_info.dki_cname, "vdc", 4) == 0) && | |
680 | (strncmp(dki_info.dki_dname, "vdc", 4) == 0)) { | |
681 | /* | |
682 | * The controller and drive name "vdc" (virtual disk client) | |
683 | * indicates a LDoms virtual disk. | |
684 | */ | |
685 | vdc_flag++; | |
686 | } | |
687 | ||
688 | /* get the LBA size */ | |
d603ed6c | 689 | if (read_disk_info(fd, &capacity, &lbsize) == -1) { |
5c363129 BB |
690 | if (efi_debug) { |
691 | (void) fprintf(stderr, | |
d1d7e268 MK |
692 | "unable to read disk info: %d", |
693 | errno); | |
5c363129 | 694 | } |
d603ed6c | 695 | return (VT_EINVAL); |
5c363129 | 696 | } |
d603ed6c BB |
697 | |
698 | disk_info.dki_lbsize = lbsize; | |
699 | disk_info.dki_capacity = capacity; | |
700 | ||
5c363129 BB |
701 | if (disk_info.dki_lbsize == 0) { |
702 | if (efi_debug) { | |
703 | (void) fprintf(stderr, | |
704 | "efi_read: assuming LBA 512 bytes\n"); | |
705 | } | |
706 | disk_info.dki_lbsize = DEV_BSIZE; | |
707 | } | |
708 | /* | |
709 | * Read the EFI GPT to figure out how many partitions we need | |
710 | * to deal with. | |
711 | */ | |
712 | dk_ioc.dki_lba = 1; | |
713 | if (NBLOCKS(vtoc->efi_nparts, disk_info.dki_lbsize) < 34) { | |
714 | label_len = EFI_MIN_ARRAY_SIZE + disk_info.dki_lbsize; | |
715 | } else { | |
716 | label_len = vtoc->efi_nparts * (int) sizeof (efi_gpe_t) + | |
717 | disk_info.dki_lbsize; | |
718 | if (label_len % disk_info.dki_lbsize) { | |
719 | /* pad to physical sector size */ | |
720 | label_len += disk_info.dki_lbsize; | |
721 | label_len &= ~(disk_info.dki_lbsize - 1); | |
722 | } | |
723 | } | |
724 | ||
d603ed6c | 725 | if (posix_memalign((void **)&dk_ioc.dki_data, |
d1d7e268 | 726 | disk_info.dki_lbsize, label_len)) |
5c363129 BB |
727 | return (VT_ERROR); |
728 | ||
d603ed6c | 729 | memset(dk_ioc.dki_data, 0, label_len); |
5c363129 BB |
730 | dk_ioc.dki_length = disk_info.dki_lbsize; |
731 | user_length = vtoc->efi_nparts; | |
732 | efi = dk_ioc.dki_data; | |
733 | if (md_flag) { | |
734 | dk_ioc.dki_length = label_len; | |
735 | if (efi_ioctl(fd, DKIOCGETEFI, &dk_ioc) == -1) { | |
736 | switch (errno) { | |
737 | case EIO: | |
738 | return (VT_EIO); | |
739 | default: | |
740 | return (VT_ERROR); | |
741 | } | |
742 | } | |
743 | } else if ((rval = check_label(fd, &dk_ioc)) == VT_EINVAL) { | |
744 | /* | |
745 | * No valid label here; try the alternate. Note that here | |
746 | * we just read GPT header and save it into dk_ioc.data, | |
747 | * Later, we will read GUID partition entry array if we | |
748 | * can get valid GPT header. | |
749 | */ | |
750 | ||
751 | /* | |
752 | * This is a workaround for legacy systems. In the past, the | |
753 | * last sector of SCSI disk was invisible on x86 platform. At | |
754 | * that time, backup label was saved on the next to the last | |
755 | * sector. It is possible for users to move a disk from previous | |
756 | * solaris system to present system. Here, we attempt to search | |
757 | * legacy backup EFI label first. | |
758 | */ | |
759 | dk_ioc.dki_lba = disk_info.dki_capacity - 2; | |
760 | dk_ioc.dki_length = disk_info.dki_lbsize; | |
761 | rval = check_label(fd, &dk_ioc); | |
762 | if (rval == VT_EINVAL) { | |
763 | /* | |
764 | * we didn't find legacy backup EFI label, try to | |
765 | * search backup EFI label in the last block. | |
766 | */ | |
767 | dk_ioc.dki_lba = disk_info.dki_capacity - 1; | |
768 | dk_ioc.dki_length = disk_info.dki_lbsize; | |
769 | rval = check_label(fd, &dk_ioc); | |
770 | if (rval == 0) { | |
771 | legacy_label = B_TRUE; | |
772 | if (efi_debug) | |
773 | (void) fprintf(stderr, | |
774 | "efi_read: primary label corrupt; " | |
775 | "using EFI backup label located on" | |
776 | " the last block\n"); | |
777 | } | |
778 | } else { | |
779 | if ((efi_debug) && (rval == 0)) | |
780 | (void) fprintf(stderr, "efi_read: primary label" | |
781 | " corrupt; using legacy EFI backup label " | |
782 | " located on the next to last block\n"); | |
783 | } | |
784 | ||
785 | if (rval == 0) { | |
786 | dk_ioc.dki_lba = LE_64(efi->efi_gpt_PartitionEntryLBA); | |
787 | vtoc->efi_flags |= EFI_GPT_PRIMARY_CORRUPT; | |
788 | vtoc->efi_nparts = | |
789 | LE_32(efi->efi_gpt_NumberOfPartitionEntries); | |
790 | /* | |
791 | * Partition tables are between backup GPT header | |
792 | * table and ParitionEntryLBA (the starting LBA of | |
793 | * the GUID partition entries array). Now that we | |
794 | * already got valid GPT header and saved it in | |
795 | * dk_ioc.dki_data, we try to get GUID partition | |
796 | * entry array here. | |
797 | */ | |
798 | /* LINTED */ | |
799 | dk_ioc.dki_data = (efi_gpt_t *)((char *)dk_ioc.dki_data | |
800 | + disk_info.dki_lbsize); | |
801 | if (legacy_label) | |
802 | dk_ioc.dki_length = disk_info.dki_capacity - 1 - | |
803 | dk_ioc.dki_lba; | |
804 | else | |
805 | dk_ioc.dki_length = disk_info.dki_capacity - 2 - | |
806 | dk_ioc.dki_lba; | |
807 | dk_ioc.dki_length *= disk_info.dki_lbsize; | |
808 | if (dk_ioc.dki_length > | |
809 | ((len_t)label_len - sizeof (*dk_ioc.dki_data))) { | |
810 | rval = VT_EINVAL; | |
811 | } else { | |
812 | /* | |
813 | * read GUID partition entry array | |
814 | */ | |
815 | rval = efi_ioctl(fd, DKIOCGETEFI, &dk_ioc); | |
816 | } | |
817 | } | |
818 | ||
819 | } else if (rval == 0) { | |
820 | ||
821 | dk_ioc.dki_lba = LE_64(efi->efi_gpt_PartitionEntryLBA); | |
822 | /* LINTED */ | |
823 | dk_ioc.dki_data = (efi_gpt_t *)((char *)dk_ioc.dki_data | |
824 | + disk_info.dki_lbsize); | |
825 | dk_ioc.dki_length = label_len - disk_info.dki_lbsize; | |
826 | rval = efi_ioctl(fd, DKIOCGETEFI, &dk_ioc); | |
827 | ||
828 | } else if (vdc_flag && rval == VT_ERROR && errno == EINVAL) { | |
829 | /* | |
830 | * When the device is a LDoms virtual disk, the DKIOCGETEFI | |
831 | * ioctl can fail with EINVAL if the virtual disk backend | |
832 | * is a ZFS volume serviced by a domain running an old version | |
833 | * of Solaris. This is because the DKIOCGETEFI ioctl was | |
834 | * initially incorrectly implemented for a ZFS volume and it | |
835 | * expected the GPT and GPE to be retrieved with a single ioctl. | |
836 | * So we try to read the GPT and the GPE using that old style | |
837 | * ioctl. | |
838 | */ | |
839 | dk_ioc.dki_lba = 1; | |
840 | dk_ioc.dki_length = label_len; | |
841 | rval = check_label(fd, &dk_ioc); | |
842 | } | |
843 | ||
844 | if (rval < 0) { | |
845 | free(efi); | |
846 | return (rval); | |
847 | } | |
848 | ||
849 | /* LINTED -- always longlong aligned */ | |
850 | efi_parts = (efi_gpe_t *)(((char *)efi) + disk_info.dki_lbsize); | |
851 | ||
852 | /* | |
853 | * Assemble this into a "dk_gpt" struct for easier | |
854 | * digestibility by applications. | |
855 | */ | |
856 | vtoc->efi_version = LE_32(efi->efi_gpt_Revision); | |
857 | vtoc->efi_nparts = LE_32(efi->efi_gpt_NumberOfPartitionEntries); | |
858 | vtoc->efi_part_size = LE_32(efi->efi_gpt_SizeOfPartitionEntry); | |
859 | vtoc->efi_lbasize = disk_info.dki_lbsize; | |
860 | vtoc->efi_last_lba = disk_info.dki_capacity - 1; | |
861 | vtoc->efi_first_u_lba = LE_64(efi->efi_gpt_FirstUsableLBA); | |
862 | vtoc->efi_last_u_lba = LE_64(efi->efi_gpt_LastUsableLBA); | |
863 | vtoc->efi_altern_lba = LE_64(efi->efi_gpt_AlternateLBA); | |
864 | UUID_LE_CONVERT(vtoc->efi_disk_uguid, efi->efi_gpt_DiskGUID); | |
865 | ||
866 | /* | |
867 | * If the array the user passed in is too small, set the length | |
868 | * to what it needs to be and return | |
869 | */ | |
870 | if (user_length < vtoc->efi_nparts) { | |
871 | return (VT_EINVAL); | |
872 | } | |
873 | ||
874 | for (i = 0; i < vtoc->efi_nparts; i++) { | |
875 | ||
876 | UUID_LE_CONVERT(vtoc->efi_parts[i].p_guid, | |
877 | efi_parts[i].efi_gpe_PartitionTypeGUID); | |
878 | ||
879 | for (j = 0; | |
880 | j < sizeof (conversion_array) | |
881 | / sizeof (struct uuid_to_ptag); j++) { | |
882 | ||
883 | if (bcmp(&vtoc->efi_parts[i].p_guid, | |
884 | &conversion_array[j].uuid, | |
885 | sizeof (struct uuid)) == 0) { | |
886 | vtoc->efi_parts[i].p_tag = j; | |
887 | break; | |
888 | } | |
889 | } | |
890 | if (vtoc->efi_parts[i].p_tag == V_UNASSIGNED) | |
891 | continue; | |
892 | vtoc->efi_parts[i].p_flag = | |
893 | LE_16(efi_parts[i].efi_gpe_Attributes.PartitionAttrs); | |
894 | vtoc->efi_parts[i].p_start = | |
895 | LE_64(efi_parts[i].efi_gpe_StartingLBA); | |
896 | vtoc->efi_parts[i].p_size = | |
897 | LE_64(efi_parts[i].efi_gpe_EndingLBA) - | |
898 | vtoc->efi_parts[i].p_start + 1; | |
899 | for (j = 0; j < EFI_PART_NAME_LEN; j++) { | |
900 | vtoc->efi_parts[i].p_name[j] = | |
901 | (uchar_t)LE_16( | |
902 | efi_parts[i].efi_gpe_PartitionName[j]); | |
903 | } | |
904 | ||
905 | UUID_LE_CONVERT(vtoc->efi_parts[i].p_uguid, | |
906 | efi_parts[i].efi_gpe_UniquePartitionGUID); | |
907 | } | |
908 | free(efi); | |
909 | ||
910 | return (dki_info.dki_partition); | |
911 | } | |
912 | ||
913 | /* writes a "protective" MBR */ | |
914 | static int | |
915 | write_pmbr(int fd, struct dk_gpt *vtoc) | |
916 | { | |
917 | dk_efi_t dk_ioc; | |
918 | struct mboot mb; | |
919 | uchar_t *cp; | |
920 | diskaddr_t size_in_lba; | |
921 | uchar_t *buf; | |
922 | int len; | |
923 | ||
924 | len = (vtoc->efi_lbasize == 0) ? sizeof (mb) : vtoc->efi_lbasize; | |
d603ed6c BB |
925 | if (posix_memalign((void **)&buf, len, len)) |
926 | return (VT_ERROR); | |
5c363129 BB |
927 | |
928 | /* | |
929 | * Preserve any boot code and disk signature if the first block is | |
930 | * already an MBR. | |
931 | */ | |
d603ed6c | 932 | memset(buf, 0, len); |
5c363129 BB |
933 | dk_ioc.dki_lba = 0; |
934 | dk_ioc.dki_length = len; | |
935 | /* LINTED -- always longlong aligned */ | |
936 | dk_ioc.dki_data = (efi_gpt_t *)buf; | |
937 | if (efi_ioctl(fd, DKIOCGETEFI, &dk_ioc) == -1) { | |
f9f431cd | 938 | (void) memcpy(&mb, buf, sizeof (mb)); |
5c363129 BB |
939 | bzero(&mb, sizeof (mb)); |
940 | mb.signature = LE_16(MBB_MAGIC); | |
941 | } else { | |
f9f431cd | 942 | (void) memcpy(&mb, buf, sizeof (mb)); |
5c363129 BB |
943 | if (mb.signature != LE_16(MBB_MAGIC)) { |
944 | bzero(&mb, sizeof (mb)); | |
945 | mb.signature = LE_16(MBB_MAGIC); | |
946 | } | |
947 | } | |
948 | ||
949 | bzero(&mb.parts, sizeof (mb.parts)); | |
950 | cp = (uchar_t *)&mb.parts[0]; | |
951 | /* bootable or not */ | |
952 | *cp++ = 0; | |
953 | /* beginning CHS; 0xffffff if not representable */ | |
954 | *cp++ = 0xff; | |
955 | *cp++ = 0xff; | |
956 | *cp++ = 0xff; | |
957 | /* OS type */ | |
958 | *cp++ = EFI_PMBR; | |
959 | /* ending CHS; 0xffffff if not representable */ | |
960 | *cp++ = 0xff; | |
961 | *cp++ = 0xff; | |
962 | *cp++ = 0xff; | |
963 | /* starting LBA: 1 (little endian format) by EFI definition */ | |
964 | *cp++ = 0x01; | |
965 | *cp++ = 0x00; | |
966 | *cp++ = 0x00; | |
967 | *cp++ = 0x00; | |
968 | /* ending LBA: last block on the disk (little endian format) */ | |
969 | size_in_lba = vtoc->efi_last_lba; | |
970 | if (size_in_lba < 0xffffffff) { | |
971 | *cp++ = (size_in_lba & 0x000000ff); | |
972 | *cp++ = (size_in_lba & 0x0000ff00) >> 8; | |
973 | *cp++ = (size_in_lba & 0x00ff0000) >> 16; | |
974 | *cp++ = (size_in_lba & 0xff000000) >> 24; | |
975 | } else { | |
976 | *cp++ = 0xff; | |
977 | *cp++ = 0xff; | |
978 | *cp++ = 0xff; | |
979 | *cp++ = 0xff; | |
980 | } | |
981 | ||
f9f431cd | 982 | (void) memcpy(buf, &mb, sizeof (mb)); |
5c363129 BB |
983 | /* LINTED -- always longlong aligned */ |
984 | dk_ioc.dki_data = (efi_gpt_t *)buf; | |
985 | dk_ioc.dki_lba = 0; | |
986 | dk_ioc.dki_length = len; | |
987 | if (efi_ioctl(fd, DKIOCSETEFI, &dk_ioc) == -1) { | |
988 | free(buf); | |
989 | switch (errno) { | |
990 | case EIO: | |
991 | return (VT_EIO); | |
992 | case EINVAL: | |
993 | return (VT_EINVAL); | |
994 | default: | |
995 | return (VT_ERROR); | |
996 | } | |
997 | } | |
998 | free(buf); | |
999 | return (0); | |
1000 | } | |
1001 | ||
1002 | /* make sure the user specified something reasonable */ | |
1003 | static int | |
1004 | check_input(struct dk_gpt *vtoc) | |
1005 | { | |
1006 | int resv_part = -1; | |
1007 | int i, j; | |
1008 | diskaddr_t istart, jstart, isize, jsize, endsect; | |
1009 | ||
1010 | /* | |
1011 | * Sanity-check the input (make sure no partitions overlap) | |
1012 | */ | |
1013 | for (i = 0; i < vtoc->efi_nparts; i++) { | |
1014 | /* It can't be unassigned and have an actual size */ | |
1015 | if ((vtoc->efi_parts[i].p_tag == V_UNASSIGNED) && | |
1016 | (vtoc->efi_parts[i].p_size != 0)) { | |
1017 | if (efi_debug) { | |
d603ed6c BB |
1018 | (void) fprintf(stderr, "partition %d is " |
1019 | "\"unassigned\" but has a size of %llu", | |
1020 | i, vtoc->efi_parts[i].p_size); | |
5c363129 BB |
1021 | } |
1022 | return (VT_EINVAL); | |
1023 | } | |
1024 | if (vtoc->efi_parts[i].p_tag == V_UNASSIGNED) { | |
1025 | if (uuid_is_null((uchar_t *)&vtoc->efi_parts[i].p_guid)) | |
1026 | continue; | |
1027 | /* we have encountered an unknown uuid */ | |
1028 | vtoc->efi_parts[i].p_tag = 0xff; | |
1029 | } | |
1030 | if (vtoc->efi_parts[i].p_tag == V_RESERVED) { | |
1031 | if (resv_part != -1) { | |
1032 | if (efi_debug) { | |
d603ed6c BB |
1033 | (void) fprintf(stderr, "found " |
1034 | "duplicate reserved partition " | |
1035 | "at %d\n", i); | |
5c363129 BB |
1036 | } |
1037 | return (VT_EINVAL); | |
1038 | } | |
1039 | resv_part = i; | |
1040 | } | |
1041 | if ((vtoc->efi_parts[i].p_start < vtoc->efi_first_u_lba) || | |
1042 | (vtoc->efi_parts[i].p_start > vtoc->efi_last_u_lba)) { | |
1043 | if (efi_debug) { | |
1044 | (void) fprintf(stderr, | |
1045 | "Partition %d starts at %llu. ", | |
1046 | i, | |
1047 | vtoc->efi_parts[i].p_start); | |
1048 | (void) fprintf(stderr, | |
1049 | "It must be between %llu and %llu.\n", | |
1050 | vtoc->efi_first_u_lba, | |
1051 | vtoc->efi_last_u_lba); | |
1052 | } | |
1053 | return (VT_EINVAL); | |
1054 | } | |
1055 | if ((vtoc->efi_parts[i].p_start + | |
1056 | vtoc->efi_parts[i].p_size < | |
1057 | vtoc->efi_first_u_lba) || | |
1058 | (vtoc->efi_parts[i].p_start + | |
1059 | vtoc->efi_parts[i].p_size > | |
1060 | vtoc->efi_last_u_lba + 1)) { | |
1061 | if (efi_debug) { | |
1062 | (void) fprintf(stderr, | |
1063 | "Partition %d ends at %llu. ", | |
1064 | i, | |
1065 | vtoc->efi_parts[i].p_start + | |
1066 | vtoc->efi_parts[i].p_size); | |
1067 | (void) fprintf(stderr, | |
1068 | "It must be between %llu and %llu.\n", | |
1069 | vtoc->efi_first_u_lba, | |
1070 | vtoc->efi_last_u_lba); | |
1071 | } | |
1072 | return (VT_EINVAL); | |
1073 | } | |
1074 | ||
1075 | for (j = 0; j < vtoc->efi_nparts; j++) { | |
1076 | isize = vtoc->efi_parts[i].p_size; | |
1077 | jsize = vtoc->efi_parts[j].p_size; | |
1078 | istart = vtoc->efi_parts[i].p_start; | |
1079 | jstart = vtoc->efi_parts[j].p_start; | |
1080 | if ((i != j) && (isize != 0) && (jsize != 0)) { | |
1081 | endsect = jstart + jsize -1; | |
1082 | if ((jstart <= istart) && | |
1083 | (istart <= endsect)) { | |
1084 | if (efi_debug) { | |
1085 | (void) fprintf(stderr, | |
d603ed6c BB |
1086 | "Partition %d overlaps " |
1087 | "partition %d.", i, j); | |
5c363129 BB |
1088 | } |
1089 | return (VT_EINVAL); | |
1090 | } | |
1091 | } | |
1092 | } | |
1093 | } | |
1094 | /* just a warning for now */ | |
1095 | if ((resv_part == -1) && efi_debug) { | |
1096 | (void) fprintf(stderr, | |
1097 | "no reserved partition found\n"); | |
1098 | } | |
1099 | return (0); | |
1100 | } | |
1101 | ||
1102 | /* | |
1103 | * add all the unallocated space to the current label | |
1104 | */ | |
1105 | int | |
1106 | efi_use_whole_disk(int fd) | |
1107 | { | |
1108 | struct dk_gpt *efi_label; | |
1109 | int rval; | |
1110 | int i; | |
cee43a74 ED |
1111 | uint_t resv_index = 0, data_index = 0; |
1112 | diskaddr_t resv_start = 0, data_start = 0; | |
1113 | diskaddr_t difference; | |
5c363129 BB |
1114 | |
1115 | rval = efi_alloc_and_read(fd, &efi_label); | |
1116 | if (rval < 0) { | |
1117 | return (rval); | |
1118 | } | |
1119 | ||
5c363129 BB |
1120 | /* |
1121 | * If alter_lba is 1, we are using the backup label. | |
1122 | * Since we can locate the backup label by disk capacity, | |
1123 | * there must be no unallocated space. | |
1124 | */ | |
1125 | if ((efi_label->efi_altern_lba == 1) || (efi_label->efi_altern_lba | |
1126 | >= efi_label->efi_last_lba)) { | |
1127 | if (efi_debug) { | |
1128 | (void) fprintf(stderr, | |
1129 | "efi_use_whole_disk: requested space not found\n"); | |
1130 | } | |
1131 | efi_free(efi_label); | |
1132 | return (VT_ENOSPC); | |
1133 | } | |
1134 | ||
cee43a74 ED |
1135 | difference = efi_label->efi_last_lba - efi_label->efi_altern_lba; |
1136 | ||
1137 | /* | |
1138 | * Find the last physically non-zero partition. | |
1139 | * This is the reserved partition. | |
1140 | */ | |
1141 | for (i = 0; i < efi_label->efi_nparts; i ++) { | |
1142 | if (resv_start < efi_label->efi_parts[i].p_start) { | |
1143 | resv_start = efi_label->efi_parts[i].p_start; | |
1144 | resv_index = i; | |
1145 | } | |
1146 | } | |
1147 | ||
5c363129 | 1148 | /* |
cee43a74 ED |
1149 | * Find the last physically non-zero partition before that. |
1150 | * This is the data partition. | |
5c363129 | 1151 | */ |
cee43a74 ED |
1152 | for (i = 0; i < resv_index; i ++) { |
1153 | if (data_start < efi_label->efi_parts[i].p_start) { | |
1154 | data_start = efi_label->efi_parts[i].p_start; | |
1155 | data_index = i; | |
1156 | } | |
5c363129 BB |
1157 | } |
1158 | ||
1159 | /* | |
1160 | * Move the reserved partition. There is currently no data in | |
1161 | * here except fabricated devids (which get generated via | |
1162 | * efi_write()). So there is no need to copy data. | |
1163 | */ | |
cee43a74 ED |
1164 | efi_label->efi_parts[data_index].p_size += difference; |
1165 | efi_label->efi_parts[resv_index].p_start += difference; | |
1166 | efi_label->efi_last_u_lba += difference; | |
5c363129 BB |
1167 | |
1168 | rval = efi_write(fd, efi_label); | |
1169 | if (rval < 0) { | |
1170 | if (efi_debug) { | |
1171 | (void) fprintf(stderr, | |
1172 | "efi_use_whole_disk:fail to write label, rval=%d\n", | |
1173 | rval); | |
1174 | } | |
1175 | efi_free(efi_label); | |
1176 | return (rval); | |
1177 | } | |
1178 | ||
1179 | efi_free(efi_label); | |
1180 | return (0); | |
1181 | } | |
1182 | ||
1183 | ||
1184 | /* | |
1185 | * write EFI label and backup label | |
1186 | */ | |
1187 | int | |
1188 | efi_write(int fd, struct dk_gpt *vtoc) | |
1189 | { | |
1190 | dk_efi_t dk_ioc; | |
1191 | efi_gpt_t *efi; | |
1192 | efi_gpe_t *efi_parts; | |
1193 | int i, j; | |
1194 | struct dk_cinfo dki_info; | |
d603ed6c | 1195 | int rval; |
5c363129 BB |
1196 | int md_flag = 0; |
1197 | int nblocks; | |
1198 | diskaddr_t lba_backup_gpt_hdr; | |
1199 | ||
d603ed6c | 1200 | if ((rval = efi_get_info(fd, &dki_info)) != 0) |
d1d7e268 | 1201 | return (rval); |
5c363129 BB |
1202 | |
1203 | /* check if we are dealing wih a metadevice */ | |
1204 | if ((strncmp(dki_info.dki_cname, "pseudo", 7) == 0) && | |
1205 | (strncmp(dki_info.dki_dname, "md", 3) == 0)) { | |
1206 | md_flag = 1; | |
1207 | } | |
1208 | ||
1209 | if (check_input(vtoc)) { | |
1210 | /* | |
1211 | * not valid; if it's a metadevice just pass it down | |
1212 | * because SVM will do its own checking | |
1213 | */ | |
1214 | if (md_flag == 0) { | |
1215 | return (VT_EINVAL); | |
1216 | } | |
1217 | } | |
1218 | ||
1219 | dk_ioc.dki_lba = 1; | |
1220 | if (NBLOCKS(vtoc->efi_nparts, vtoc->efi_lbasize) < 34) { | |
1221 | dk_ioc.dki_length = EFI_MIN_ARRAY_SIZE + vtoc->efi_lbasize; | |
1222 | } else { | |
1223 | dk_ioc.dki_length = NBLOCKS(vtoc->efi_nparts, | |
1224 | vtoc->efi_lbasize) * | |
1225 | vtoc->efi_lbasize; | |
1226 | } | |
1227 | ||
1228 | /* | |
1229 | * the number of blocks occupied by GUID partition entry array | |
1230 | */ | |
1231 | nblocks = dk_ioc.dki_length / vtoc->efi_lbasize - 1; | |
1232 | ||
1233 | /* | |
1234 | * Backup GPT header is located on the block after GUID | |
1235 | * partition entry array. Here, we calculate the address | |
1236 | * for backup GPT header. | |
1237 | */ | |
1238 | lba_backup_gpt_hdr = vtoc->efi_last_u_lba + 1 + nblocks; | |
d603ed6c | 1239 | if (posix_memalign((void **)&dk_ioc.dki_data, |
d1d7e268 | 1240 | vtoc->efi_lbasize, dk_ioc.dki_length)) |
5c363129 BB |
1241 | return (VT_ERROR); |
1242 | ||
d603ed6c | 1243 | memset(dk_ioc.dki_data, 0, dk_ioc.dki_length); |
5c363129 BB |
1244 | efi = dk_ioc.dki_data; |
1245 | ||
1246 | /* stuff user's input into EFI struct */ | |
1247 | efi->efi_gpt_Signature = LE_64(EFI_SIGNATURE); | |
1248 | efi->efi_gpt_Revision = LE_32(vtoc->efi_version); /* 0x02000100 */ | |
7a023273 | 1249 | efi->efi_gpt_HeaderSize = LE_32(sizeof (struct efi_gpt) - LEN_EFI_PAD); |
5c363129 BB |
1250 | efi->efi_gpt_Reserved1 = 0; |
1251 | efi->efi_gpt_MyLBA = LE_64(1ULL); | |
1252 | efi->efi_gpt_AlternateLBA = LE_64(lba_backup_gpt_hdr); | |
1253 | efi->efi_gpt_FirstUsableLBA = LE_64(vtoc->efi_first_u_lba); | |
1254 | efi->efi_gpt_LastUsableLBA = LE_64(vtoc->efi_last_u_lba); | |
1255 | efi->efi_gpt_PartitionEntryLBA = LE_64(2ULL); | |
1256 | efi->efi_gpt_NumberOfPartitionEntries = LE_32(vtoc->efi_nparts); | |
1257 | efi->efi_gpt_SizeOfPartitionEntry = LE_32(sizeof (struct efi_gpe)); | |
1258 | UUID_LE_CONVERT(efi->efi_gpt_DiskGUID, vtoc->efi_disk_uguid); | |
1259 | ||
1260 | /* LINTED -- always longlong aligned */ | |
1261 | efi_parts = (efi_gpe_t *)((char *)dk_ioc.dki_data + vtoc->efi_lbasize); | |
1262 | ||
1263 | for (i = 0; i < vtoc->efi_nparts; i++) { | |
1264 | for (j = 0; | |
1265 | j < sizeof (conversion_array) / | |
1266 | sizeof (struct uuid_to_ptag); j++) { | |
1267 | ||
1268 | if (vtoc->efi_parts[i].p_tag == j) { | |
1269 | UUID_LE_CONVERT( | |
1270 | efi_parts[i].efi_gpe_PartitionTypeGUID, | |
1271 | conversion_array[j].uuid); | |
1272 | break; | |
1273 | } | |
1274 | } | |
1275 | ||
1276 | if (j == sizeof (conversion_array) / | |
1277 | sizeof (struct uuid_to_ptag)) { | |
1278 | /* | |
1279 | * If we didn't have a matching uuid match, bail here. | |
1280 | * Don't write a label with unknown uuid. | |
1281 | */ | |
1282 | if (efi_debug) { | |
1283 | (void) fprintf(stderr, | |
1284 | "Unknown uuid for p_tag %d\n", | |
1285 | vtoc->efi_parts[i].p_tag); | |
1286 | } | |
1287 | return (VT_EINVAL); | |
1288 | } | |
1289 | ||
d603ed6c BB |
1290 | /* Zero's should be written for empty partitions */ |
1291 | if (vtoc->efi_parts[i].p_tag == V_UNASSIGNED) | |
1292 | continue; | |
1293 | ||
5c363129 BB |
1294 | efi_parts[i].efi_gpe_StartingLBA = |
1295 | LE_64(vtoc->efi_parts[i].p_start); | |
1296 | efi_parts[i].efi_gpe_EndingLBA = | |
1297 | LE_64(vtoc->efi_parts[i].p_start + | |
1298 | vtoc->efi_parts[i].p_size - 1); | |
1299 | efi_parts[i].efi_gpe_Attributes.PartitionAttrs = | |
1300 | LE_16(vtoc->efi_parts[i].p_flag); | |
1301 | for (j = 0; j < EFI_PART_NAME_LEN; j++) { | |
1302 | efi_parts[i].efi_gpe_PartitionName[j] = | |
1303 | LE_16((ushort_t)vtoc->efi_parts[i].p_name[j]); | |
1304 | } | |
1305 | if ((vtoc->efi_parts[i].p_tag != V_UNASSIGNED) && | |
1306 | uuid_is_null((uchar_t *)&vtoc->efi_parts[i].p_uguid)) { | |
1307 | (void) uuid_generate((uchar_t *) | |
1308 | &vtoc->efi_parts[i].p_uguid); | |
1309 | } | |
1310 | bcopy(&vtoc->efi_parts[i].p_uguid, | |
1311 | &efi_parts[i].efi_gpe_UniquePartitionGUID, | |
1312 | sizeof (uuid_t)); | |
1313 | } | |
1314 | efi->efi_gpt_PartitionEntryArrayCRC32 = | |
1315 | LE_32(efi_crc32((unsigned char *)efi_parts, | |
1316 | vtoc->efi_nparts * (int)sizeof (struct efi_gpe))); | |
1317 | efi->efi_gpt_HeaderCRC32 = | |
7a023273 ZB |
1318 | LE_32(efi_crc32((unsigned char *)efi, |
1319 | LE_32(efi->efi_gpt_HeaderSize))); | |
5c363129 BB |
1320 | |
1321 | if (efi_ioctl(fd, DKIOCSETEFI, &dk_ioc) == -1) { | |
1322 | free(dk_ioc.dki_data); | |
1323 | switch (errno) { | |
1324 | case EIO: | |
1325 | return (VT_EIO); | |
1326 | case EINVAL: | |
1327 | return (VT_EINVAL); | |
1328 | default: | |
1329 | return (VT_ERROR); | |
1330 | } | |
1331 | } | |
1332 | /* if it's a metadevice we're done */ | |
1333 | if (md_flag) { | |
1334 | free(dk_ioc.dki_data); | |
1335 | return (0); | |
1336 | } | |
1337 | ||
1338 | /* write backup partition array */ | |
1339 | dk_ioc.dki_lba = vtoc->efi_last_u_lba + 1; | |
1340 | dk_ioc.dki_length -= vtoc->efi_lbasize; | |
1341 | /* LINTED */ | |
1342 | dk_ioc.dki_data = (efi_gpt_t *)((char *)dk_ioc.dki_data + | |
1343 | vtoc->efi_lbasize); | |
1344 | ||
1345 | if (efi_ioctl(fd, DKIOCSETEFI, &dk_ioc) == -1) { | |
1346 | /* | |
1347 | * we wrote the primary label okay, so don't fail | |
1348 | */ | |
1349 | if (efi_debug) { | |
1350 | (void) fprintf(stderr, | |
1351 | "write of backup partitions to block %llu " | |
1352 | "failed, errno %d\n", | |
1353 | vtoc->efi_last_u_lba + 1, | |
1354 | errno); | |
1355 | } | |
1356 | } | |
1357 | /* | |
1358 | * now swap MyLBA and AlternateLBA fields and write backup | |
1359 | * partition table header | |
1360 | */ | |
1361 | dk_ioc.dki_lba = lba_backup_gpt_hdr; | |
1362 | dk_ioc.dki_length = vtoc->efi_lbasize; | |
1363 | /* LINTED */ | |
1364 | dk_ioc.dki_data = (efi_gpt_t *)((char *)dk_ioc.dki_data - | |
1365 | vtoc->efi_lbasize); | |
1366 | efi->efi_gpt_AlternateLBA = LE_64(1ULL); | |
1367 | efi->efi_gpt_MyLBA = LE_64(lba_backup_gpt_hdr); | |
1368 | efi->efi_gpt_PartitionEntryLBA = LE_64(vtoc->efi_last_u_lba + 1); | |
1369 | efi->efi_gpt_HeaderCRC32 = 0; | |
1370 | efi->efi_gpt_HeaderCRC32 = | |
1371 | LE_32(efi_crc32((unsigned char *)dk_ioc.dki_data, | |
7a023273 | 1372 | LE_32(efi->efi_gpt_HeaderSize))); |
5c363129 BB |
1373 | |
1374 | if (efi_ioctl(fd, DKIOCSETEFI, &dk_ioc) == -1) { | |
1375 | if (efi_debug) { | |
1376 | (void) fprintf(stderr, | |
1377 | "write of backup header to block %llu failed, " | |
1378 | "errno %d\n", | |
1379 | lba_backup_gpt_hdr, | |
1380 | errno); | |
1381 | } | |
1382 | } | |
1383 | /* write the PMBR */ | |
1384 | (void) write_pmbr(fd, vtoc); | |
1385 | free(dk_ioc.dki_data); | |
d603ed6c | 1386 | |
5c363129 BB |
1387 | return (0); |
1388 | } | |
1389 | ||
1390 | void | |
1391 | efi_free(struct dk_gpt *ptr) | |
1392 | { | |
1393 | free(ptr); | |
1394 | } | |
1395 | ||
1396 | /* | |
1397 | * Input: File descriptor | |
1398 | * Output: 1 if disk has an EFI label, or > 2TB with no VTOC or legacy MBR. | |
1399 | * Otherwise 0. | |
1400 | */ | |
1401 | int | |
1402 | efi_type(int fd) | |
1403 | { | |
d603ed6c | 1404 | #if 0 |
5c363129 BB |
1405 | struct vtoc vtoc; |
1406 | struct extvtoc extvtoc; | |
1407 | ||
1408 | if (ioctl(fd, DKIOCGEXTVTOC, &extvtoc) == -1) { | |
1409 | if (errno == ENOTSUP) | |
1410 | return (1); | |
1411 | else if (errno == ENOTTY) { | |
1412 | if (ioctl(fd, DKIOCGVTOC, &vtoc) == -1) | |
1413 | if (errno == ENOTSUP) | |
1414 | return (1); | |
1415 | } | |
1416 | } | |
1417 | return (0); | |
d603ed6c BB |
1418 | #else |
1419 | return (ENOSYS); | |
1420 | #endif | |
5c363129 BB |
1421 | } |
1422 | ||
1423 | void | |
1424 | efi_err_check(struct dk_gpt *vtoc) | |
1425 | { | |
1426 | int resv_part = -1; | |
1427 | int i, j; | |
1428 | diskaddr_t istart, jstart, isize, jsize, endsect; | |
1429 | int overlap = 0; | |
1430 | ||
1431 | /* | |
1432 | * make sure no partitions overlap | |
1433 | */ | |
1434 | for (i = 0; i < vtoc->efi_nparts; i++) { | |
1435 | /* It can't be unassigned and have an actual size */ | |
1436 | if ((vtoc->efi_parts[i].p_tag == V_UNASSIGNED) && | |
1437 | (vtoc->efi_parts[i].p_size != 0)) { | |
1438 | (void) fprintf(stderr, | |
1439 | "partition %d is \"unassigned\" but has a size " | |
1440 | "of %llu\n", i, vtoc->efi_parts[i].p_size); | |
1441 | } | |
1442 | if (vtoc->efi_parts[i].p_tag == V_UNASSIGNED) { | |
1443 | continue; | |
1444 | } | |
1445 | if (vtoc->efi_parts[i].p_tag == V_RESERVED) { | |
1446 | if (resv_part != -1) { | |
1447 | (void) fprintf(stderr, | |
1448 | "found duplicate reserved partition at " | |
1449 | "%d\n", i); | |
1450 | } | |
1451 | resv_part = i; | |
1452 | if (vtoc->efi_parts[i].p_size != EFI_MIN_RESV_SIZE) | |
1453 | (void) fprintf(stderr, | |
1454 | "Warning: reserved partition size must " | |
1455 | "be %d sectors\n", EFI_MIN_RESV_SIZE); | |
1456 | } | |
1457 | if ((vtoc->efi_parts[i].p_start < vtoc->efi_first_u_lba) || | |
1458 | (vtoc->efi_parts[i].p_start > vtoc->efi_last_u_lba)) { | |
1459 | (void) fprintf(stderr, | |
1460 | "Partition %d starts at %llu\n", | |
1461 | i, | |
1462 | vtoc->efi_parts[i].p_start); | |
1463 | (void) fprintf(stderr, | |
1464 | "It must be between %llu and %llu.\n", | |
1465 | vtoc->efi_first_u_lba, | |
1466 | vtoc->efi_last_u_lba); | |
1467 | } | |
1468 | if ((vtoc->efi_parts[i].p_start + | |
1469 | vtoc->efi_parts[i].p_size < | |
1470 | vtoc->efi_first_u_lba) || | |
1471 | (vtoc->efi_parts[i].p_start + | |
1472 | vtoc->efi_parts[i].p_size > | |
1473 | vtoc->efi_last_u_lba + 1)) { | |
1474 | (void) fprintf(stderr, | |
1475 | "Partition %d ends at %llu\n", | |
1476 | i, | |
1477 | vtoc->efi_parts[i].p_start + | |
1478 | vtoc->efi_parts[i].p_size); | |
1479 | (void) fprintf(stderr, | |
1480 | "It must be between %llu and %llu.\n", | |
1481 | vtoc->efi_first_u_lba, | |
1482 | vtoc->efi_last_u_lba); | |
1483 | } | |
1484 | ||
1485 | for (j = 0; j < vtoc->efi_nparts; j++) { | |
1486 | isize = vtoc->efi_parts[i].p_size; | |
1487 | jsize = vtoc->efi_parts[j].p_size; | |
1488 | istart = vtoc->efi_parts[i].p_start; | |
1489 | jstart = vtoc->efi_parts[j].p_start; | |
1490 | if ((i != j) && (isize != 0) && (jsize != 0)) { | |
1491 | endsect = jstart + jsize -1; | |
1492 | if ((jstart <= istart) && | |
1493 | (istart <= endsect)) { | |
1494 | if (!overlap) { | |
1495 | (void) fprintf(stderr, | |
1496 | "label error: EFI Labels do not " | |
1497 | "support overlapping partitions\n"); | |
1498 | } | |
1499 | (void) fprintf(stderr, | |
1500 | "Partition %d overlaps partition " | |
1501 | "%d.\n", i, j); | |
1502 | overlap = 1; | |
1503 | } | |
1504 | } | |
1505 | } | |
1506 | } | |
1507 | /* make sure there is a reserved partition */ | |
1508 | if (resv_part == -1) { | |
1509 | (void) fprintf(stderr, | |
1510 | "no reserved partition found\n"); | |
1511 | } | |
1512 | } | |
1513 | ||
1514 | /* | |
1515 | * We need to get information necessary to construct a *new* efi | |
1516 | * label type | |
1517 | */ | |
1518 | int | |
1519 | efi_auto_sense(int fd, struct dk_gpt **vtoc) | |
1520 | { | |
1521 | ||
1522 | int i; | |
1523 | ||
1524 | /* | |
1525 | * Now build the default partition table | |
1526 | */ | |
1527 | if (efi_alloc_and_init(fd, EFI_NUMPAR, vtoc) != 0) { | |
1528 | if (efi_debug) { | |
1529 | (void) fprintf(stderr, "efi_alloc_and_init failed.\n"); | |
1530 | } | |
1531 | return (-1); | |
1532 | } | |
1533 | ||
d603ed6c | 1534 | for (i = 0; i < MIN((*vtoc)->efi_nparts, V_NUMPAR); i++) { |
5c363129 BB |
1535 | (*vtoc)->efi_parts[i].p_tag = default_vtoc_map[i].p_tag; |
1536 | (*vtoc)->efi_parts[i].p_flag = default_vtoc_map[i].p_flag; | |
1537 | (*vtoc)->efi_parts[i].p_start = 0; | |
1538 | (*vtoc)->efi_parts[i].p_size = 0; | |
1539 | } | |
1540 | /* | |
1541 | * Make constants first | |
1542 | * and variable partitions later | |
1543 | */ | |
1544 | ||
1545 | /* root partition - s0 128 MB */ | |
1546 | (*vtoc)->efi_parts[0].p_start = 34; | |
1547 | (*vtoc)->efi_parts[0].p_size = 262144; | |
1548 | ||
1549 | /* partition - s1 128 MB */ | |
1550 | (*vtoc)->efi_parts[1].p_start = 262178; | |
1551 | (*vtoc)->efi_parts[1].p_size = 262144; | |
1552 | ||
1553 | /* partition -s2 is NOT the Backup disk */ | |
1554 | (*vtoc)->efi_parts[2].p_tag = V_UNASSIGNED; | |
1555 | ||
1556 | /* partition -s6 /usr partition - HOG */ | |
1557 | (*vtoc)->efi_parts[6].p_start = 524322; | |
1558 | (*vtoc)->efi_parts[6].p_size = (*vtoc)->efi_last_u_lba - 524322 | |
1559 | - (1024 * 16); | |
1560 | ||
1561 | /* efi reserved partition - s9 16K */ | |
1562 | (*vtoc)->efi_parts[8].p_start = (*vtoc)->efi_last_u_lba - (1024 * 16); | |
1563 | (*vtoc)->efi_parts[8].p_size = (1024 * 16); | |
1564 | (*vtoc)->efi_parts[8].p_tag = V_RESERVED; | |
1565 | return (0); | |
1566 | } |