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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. |
cae5b340 | 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 }, | |
cae5b340 AX |
73 | { EFI_AAPL_UFS }, |
74 | { EFI_FREEBSD_BOOT }, | |
75 | { EFI_FREEBSD_SWAP }, | |
76 | { EFI_FREEBSD_UFS }, | |
77 | { EFI_FREEBSD_VINUM }, | |
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 | ||
a08ee875 | 156 | #if defined(i386) || defined(__amd64) || defined(__arm) || \ |
cae5b340 AX |
157 | defined(__powerpc) || defined(__sparc) || defined(__s390__) || \ |
158 | defined(__mips__) | |
5c363129 BB |
159 | { V_BOOT, V_UNMNT }, /* i - 8 */ |
160 | { V_ALTSCTR, 0 }, /* j - 9 */ | |
161 | ||
162 | #else | |
163 | #error No VTOC format defined. | |
164 | #endif /* defined(i386) */ | |
165 | ||
166 | { V_UNASSIGNED, 0 }, /* k - 10 */ | |
167 | { V_UNASSIGNED, 0 }, /* l - 11 */ | |
168 | { V_UNASSIGNED, 0 }, /* m - 12 */ | |
169 | { V_UNASSIGNED, 0 }, /* n - 13 */ | |
170 | { V_UNASSIGNED, 0 }, /* o - 14 */ | |
171 | { V_UNASSIGNED, 0 }, /* p - 15 */ | |
172 | #endif /* defined(_SUNOS_VTOC_16) */ | |
173 | }; | |
174 | ||
5c363129 | 175 | int efi_debug = 0; |
5c363129 | 176 | |
d603ed6c BB |
177 | static int efi_read(int, struct dk_gpt *); |
178 | ||
179 | /* | |
180 | * Return a 32-bit CRC of the contents of the buffer. Pre-and-post | |
181 | * one's conditioning will be handled by crc32() internally. | |
182 | */ | |
183 | static uint32_t | |
184 | efi_crc32(const unsigned char *buf, unsigned int size) | |
185 | { | |
186 | uint32_t crc = crc32(0, Z_NULL, 0); | |
187 | ||
188 | crc = crc32(crc, buf, size); | |
189 | ||
190 | return (crc); | |
191 | } | |
5c363129 BB |
192 | |
193 | static int | |
194 | read_disk_info(int fd, diskaddr_t *capacity, uint_t *lbsize) | |
195 | { | |
d603ed6c BB |
196 | int sector_size; |
197 | unsigned long long capacity_size; | |
198 | ||
a08ee875 LG |
199 | if (ioctl(fd, BLKSSZGET, §or_size) < 0) |
200 | return (-1); | |
d603ed6c BB |
201 | |
202 | if (ioctl(fd, BLKGETSIZE64, &capacity_size) < 0) | |
203 | return (-1); | |
204 | ||
205 | *lbsize = (uint_t)sector_size; | |
206 | *capacity = (diskaddr_t)(capacity_size / sector_size); | |
207 | ||
208 | return (0); | |
209 | } | |
5c363129 | 210 | |
d603ed6c BB |
211 | static int |
212 | efi_get_info(int fd, struct dk_cinfo *dki_info) | |
213 | { | |
214 | #if defined(__linux__) | |
215 | char *path; | |
216 | char *dev_path; | |
217 | int rval = 0; | |
218 | ||
a08ee875 | 219 | memset(dki_info, 0, sizeof (*dki_info)); |
d603ed6c BB |
220 | |
221 | path = calloc(PATH_MAX, 1); | |
222 | if (path == NULL) | |
223 | goto error; | |
224 | ||
225 | /* | |
226 | * The simplest way to get the partition number under linux is | |
227 | * to parse it out of the /dev/<disk><parition> block device name. | |
228 | * The kernel creates this using the partition number when it | |
229 | * populates /dev/ so it may be trusted. The tricky bit here is | |
230 | * that the naming convention is based on the block device type. | |
231 | * So we need to take this in to account when parsing out the | |
232 | * partition information. Another issue is that the libefi API | |
233 | * API only provides the open fd and not the file path. To handle | |
234 | * this realpath(3) is used to resolve the block device name from | |
235 | * /proc/self/fd/<fd>. Aside from the partition number we collect | |
236 | * some additional device info. | |
237 | */ | |
238 | (void) sprintf(path, "/proc/self/fd/%d", fd); | |
239 | dev_path = realpath(path, NULL); | |
240 | free(path); | |
241 | ||
242 | if (dev_path == NULL) | |
243 | goto error; | |
244 | ||
245 | if ((strncmp(dev_path, "/dev/sd", 7) == 0)) { | |
246 | strcpy(dki_info->dki_cname, "sd"); | |
247 | dki_info->dki_ctype = DKC_SCSI_CCS; | |
248 | rval = sscanf(dev_path, "/dev/%[a-zA-Z]%hu", | |
a08ee875 LG |
249 | dki_info->dki_dname, |
250 | &dki_info->dki_partition); | |
d603ed6c BB |
251 | } else if ((strncmp(dev_path, "/dev/hd", 7) == 0)) { |
252 | strcpy(dki_info->dki_cname, "hd"); | |
253 | dki_info->dki_ctype = DKC_DIRECT; | |
254 | rval = sscanf(dev_path, "/dev/%[a-zA-Z]%hu", | |
a08ee875 LG |
255 | dki_info->dki_dname, |
256 | &dki_info->dki_partition); | |
d603ed6c BB |
257 | } else if ((strncmp(dev_path, "/dev/md", 7) == 0)) { |
258 | strcpy(dki_info->dki_cname, "pseudo"); | |
259 | dki_info->dki_ctype = DKC_MD; | |
ea04106b AX |
260 | strcpy(dki_info->dki_dname, "md"); |
261 | rval = sscanf(dev_path, "/dev/md%[0-9]p%hu", | |
262 | dki_info->dki_dname + 2, | |
a08ee875 | 263 | &dki_info->dki_partition); |
2932b6a8 RL |
264 | } else if ((strncmp(dev_path, "/dev/vd", 7) == 0)) { |
265 | strcpy(dki_info->dki_cname, "vd"); | |
266 | dki_info->dki_ctype = DKC_MD; | |
267 | rval = sscanf(dev_path, "/dev/%[a-zA-Z]%hu", | |
a08ee875 LG |
268 | dki_info->dki_dname, |
269 | &dki_info->dki_partition); | |
e10b0808 AX |
270 | } else if ((strncmp(dev_path, "/dev/xvd", 8) == 0)) { |
271 | strcpy(dki_info->dki_cname, "xvd"); | |
272 | dki_info->dki_ctype = DKC_MD; | |
273 | rval = sscanf(dev_path, "/dev/%[a-zA-Z]%hu", | |
274 | dki_info->dki_dname, | |
275 | &dki_info->dki_partition); | |
276 | } else if ((strncmp(dev_path, "/dev/zd", 7) == 0)) { | |
277 | strcpy(dki_info->dki_cname, "zd"); | |
278 | dki_info->dki_ctype = DKC_MD; | |
279 | rval = sscanf(dev_path, "/dev/%[a-zA-Z]%hu", | |
280 | dki_info->dki_dname, | |
281 | &dki_info->dki_partition); | |
d603ed6c BB |
282 | } else if ((strncmp(dev_path, "/dev/dm-", 8) == 0)) { |
283 | strcpy(dki_info->dki_cname, "pseudo"); | |
284 | dki_info->dki_ctype = DKC_VBD; | |
ea04106b AX |
285 | strcpy(dki_info->dki_dname, "dm-"); |
286 | rval = sscanf(dev_path, "/dev/dm-%[0-9]p%hu", | |
287 | dki_info->dki_dname + 3, | |
a08ee875 | 288 | &dki_info->dki_partition); |
d603ed6c BB |
289 | } else if ((strncmp(dev_path, "/dev/ram", 8) == 0)) { |
290 | strcpy(dki_info->dki_cname, "pseudo"); | |
291 | dki_info->dki_ctype = DKC_PCMCIA_MEM; | |
ea04106b AX |
292 | strcpy(dki_info->dki_dname, "ram"); |
293 | rval = sscanf(dev_path, "/dev/ram%[0-9]p%hu", | |
294 | dki_info->dki_dname + 3, | |
a08ee875 | 295 | &dki_info->dki_partition); |
d603ed6c BB |
296 | } else if ((strncmp(dev_path, "/dev/loop", 9) == 0)) { |
297 | strcpy(dki_info->dki_cname, "pseudo"); | |
298 | dki_info->dki_ctype = DKC_VBD; | |
ea04106b AX |
299 | strcpy(dki_info->dki_dname, "loop"); |
300 | rval = sscanf(dev_path, "/dev/loop%[0-9]p%hu", | |
301 | dki_info->dki_dname + 4, | |
a08ee875 | 302 | &dki_info->dki_partition); |
42f7b73b AX |
303 | } else if ((strncmp(dev_path, "/dev/nvme", 9) == 0)) { |
304 | strcpy(dki_info->dki_cname, "nvme"); | |
305 | dki_info->dki_ctype = DKC_SCSI_CCS; | |
306 | strcpy(dki_info->dki_dname, "nvme"); | |
307 | (void) sscanf(dev_path, "/dev/nvme%[0-9]", | |
308 | dki_info->dki_dname + 4); | |
309 | size_t controller_length = strlen( | |
310 | dki_info->dki_dname); | |
311 | strcpy(dki_info->dki_dname + controller_length, | |
312 | "n"); | |
313 | rval = sscanf(dev_path, | |
314 | "/dev/nvme%*[0-9]n%[0-9]p%hu", | |
315 | dki_info->dki_dname + controller_length + 1, | |
316 | &dki_info->dki_partition); | |
d603ed6c BB |
317 | } else { |
318 | strcpy(dki_info->dki_dname, "unknown"); | |
319 | strcpy(dki_info->dki_cname, "unknown"); | |
320 | dki_info->dki_ctype = DKC_UNKNOWN; | |
321 | } | |
322 | ||
323 | switch (rval) { | |
324 | case 0: | |
325 | errno = EINVAL; | |
326 | goto error; | |
327 | case 1: | |
328 | dki_info->dki_partition = 0; | |
329 | } | |
330 | ||
331 | free(dev_path); | |
332 | #else | |
333 | if (ioctl(fd, DKIOCINFO, (caddr_t)dki_info) == -1) | |
334 | goto error; | |
335 | #endif | |
5c363129 | 336 | return (0); |
d603ed6c BB |
337 | error: |
338 | if (efi_debug) | |
339 | (void) fprintf(stderr, "DKIOCINFO errno 0x%x\n", errno); | |
340 | ||
341 | switch (errno) { | |
342 | case EIO: | |
343 | return (VT_EIO); | |
344 | case EINVAL: | |
345 | return (VT_EINVAL); | |
346 | default: | |
347 | return (VT_ERROR); | |
348 | } | |
5c363129 BB |
349 | } |
350 | ||
351 | /* | |
352 | * the number of blocks the EFI label takes up (round up to nearest | |
353 | * block) | |
354 | */ | |
355 | #define NBLOCKS(p, l) (1 + ((((p) * (int)sizeof (efi_gpe_t)) + \ | |
356 | ((l) - 1)) / (l))) | |
357 | /* number of partitions -- limited by what we can malloc */ | |
358 | #define MAX_PARTS ((4294967295UL - sizeof (struct dk_gpt)) / \ | |
359 | sizeof (struct dk_part)) | |
360 | ||
361 | int | |
362 | efi_alloc_and_init(int fd, uint32_t nparts, struct dk_gpt **vtoc) | |
363 | { | |
d603ed6c BB |
364 | diskaddr_t capacity = 0; |
365 | uint_t lbsize = 0; | |
5c363129 BB |
366 | uint_t nblocks; |
367 | size_t length; | |
368 | struct dk_gpt *vptr; | |
369 | struct uuid uuid; | |
d603ed6c | 370 | struct dk_cinfo dki_info; |
5c363129 | 371 | |
b3b4f547 | 372 | if (read_disk_info(fd, &capacity, &lbsize) != 0) |
5c363129 | 373 | return (-1); |
b3b4f547 | 374 | |
d603ed6c | 375 | #if defined(__linux__) |
b3b4f547 | 376 | if (efi_get_info(fd, &dki_info) != 0) |
d603ed6c | 377 | return (-1); |
d603ed6c BB |
378 | |
379 | if (dki_info.dki_partition != 0) | |
380 | return (-1); | |
381 | ||
382 | if ((dki_info.dki_ctype == DKC_PCMCIA_MEM) || | |
383 | (dki_info.dki_ctype == DKC_VBD) || | |
384 | (dki_info.dki_ctype == DKC_UNKNOWN)) | |
385 | return (-1); | |
386 | #endif | |
5c363129 BB |
387 | |
388 | nblocks = NBLOCKS(nparts, lbsize); | |
389 | if ((nblocks * lbsize) < EFI_MIN_ARRAY_SIZE + lbsize) { | |
390 | /* 16K plus one block for the GPT */ | |
391 | nblocks = EFI_MIN_ARRAY_SIZE / lbsize + 1; | |
392 | } | |
393 | ||
394 | if (nparts > MAX_PARTS) { | |
395 | if (efi_debug) { | |
396 | (void) fprintf(stderr, | |
397 | "the maximum number of partitions supported is %lu\n", | |
398 | MAX_PARTS); | |
399 | } | |
400 | return (-1); | |
401 | } | |
402 | ||
403 | length = sizeof (struct dk_gpt) + | |
404 | sizeof (struct dk_part) * (nparts - 1); | |
405 | ||
406 | if ((*vtoc = calloc(length, 1)) == NULL) | |
407 | return (-1); | |
408 | ||
409 | vptr = *vtoc; | |
410 | ||
411 | vptr->efi_version = EFI_VERSION_CURRENT; | |
412 | vptr->efi_lbasize = lbsize; | |
413 | vptr->efi_nparts = nparts; | |
414 | /* | |
415 | * add one block here for the PMBR; on disks with a 512 byte | |
416 | * block size and 128 or fewer partitions, efi_first_u_lba | |
417 | * should work out to "34" | |
418 | */ | |
419 | vptr->efi_first_u_lba = nblocks + 1; | |
420 | vptr->efi_last_lba = capacity - 1; | |
421 | vptr->efi_altern_lba = capacity -1; | |
422 | vptr->efi_last_u_lba = vptr->efi_last_lba - nblocks; | |
423 | ||
424 | (void) uuid_generate((uchar_t *)&uuid); | |
425 | UUID_LE_CONVERT(vptr->efi_disk_uguid, uuid); | |
426 | return (0); | |
427 | } | |
428 | ||
429 | /* | |
430 | * Read EFI - return partition number upon success. | |
431 | */ | |
432 | int | |
433 | efi_alloc_and_read(int fd, struct dk_gpt **vtoc) | |
434 | { | |
435 | int rval; | |
436 | uint32_t nparts; | |
437 | int length; | |
438 | ||
439 | /* figure out the number of entries that would fit into 16K */ | |
440 | nparts = EFI_MIN_ARRAY_SIZE / sizeof (efi_gpe_t); | |
441 | length = (int) sizeof (struct dk_gpt) + | |
442 | (int) sizeof (struct dk_part) * (nparts - 1); | |
443 | if ((*vtoc = calloc(length, 1)) == NULL) | |
444 | return (VT_ERROR); | |
445 | ||
446 | (*vtoc)->efi_nparts = nparts; | |
447 | rval = efi_read(fd, *vtoc); | |
448 | ||
449 | if ((rval == VT_EINVAL) && (*vtoc)->efi_nparts > nparts) { | |
450 | void *tmp; | |
451 | length = (int) sizeof (struct dk_gpt) + | |
452 | (int) sizeof (struct dk_part) * | |
453 | ((*vtoc)->efi_nparts - 1); | |
454 | nparts = (*vtoc)->efi_nparts; | |
455 | if ((tmp = realloc(*vtoc, length)) == NULL) { | |
456 | free (*vtoc); | |
457 | *vtoc = NULL; | |
458 | return (VT_ERROR); | |
459 | } else { | |
460 | *vtoc = tmp; | |
461 | rval = efi_read(fd, *vtoc); | |
462 | } | |
463 | } | |
464 | ||
465 | if (rval < 0) { | |
466 | if (efi_debug) { | |
467 | (void) fprintf(stderr, | |
468 | "read of EFI table failed, rval=%d\n", rval); | |
469 | } | |
470 | free (*vtoc); | |
471 | *vtoc = NULL; | |
472 | } | |
473 | ||
474 | return (rval); | |
475 | } | |
476 | ||
477 | static int | |
478 | efi_ioctl(int fd, int cmd, dk_efi_t *dk_ioc) | |
479 | { | |
480 | void *data = dk_ioc->dki_data; | |
481 | int error; | |
d603ed6c BB |
482 | #if defined(__linux__) |
483 | diskaddr_t capacity; | |
484 | uint_t lbsize; | |
485 | ||
486 | /* | |
487 | * When the IO is not being performed in kernel as an ioctl we need | |
488 | * to know the sector size so we can seek to the proper byte offset. | |
489 | */ | |
490 | if (read_disk_info(fd, &capacity, &lbsize) == -1) { | |
491 | if (efi_debug) | |
a08ee875 | 492 | fprintf(stderr, "unable to read disk info: %d", errno); |
d603ed6c BB |
493 | |
494 | errno = EIO; | |
a08ee875 | 495 | return (-1); |
d603ed6c BB |
496 | } |
497 | ||
498 | switch (cmd) { | |
499 | case DKIOCGETEFI: | |
500 | if (lbsize == 0) { | |
501 | if (efi_debug) | |
502 | (void) fprintf(stderr, "DKIOCGETEFI assuming " | |
a08ee875 | 503 | "LBA %d bytes\n", DEV_BSIZE); |
d603ed6c BB |
504 | |
505 | lbsize = DEV_BSIZE; | |
506 | } | |
507 | ||
508 | error = lseek(fd, dk_ioc->dki_lba * lbsize, SEEK_SET); | |
509 | if (error == -1) { | |
510 | if (efi_debug) | |
511 | (void) fprintf(stderr, "DKIOCGETEFI lseek " | |
a08ee875 LG |
512 | "error: %d\n", errno); |
513 | return (error); | |
d603ed6c BB |
514 | } |
515 | ||
516 | error = read(fd, data, dk_ioc->dki_length); | |
517 | if (error == -1) { | |
518 | if (efi_debug) | |
519 | (void) fprintf(stderr, "DKIOCGETEFI read " | |
a08ee875 LG |
520 | "error: %d\n", errno); |
521 | return (error); | |
d603ed6c | 522 | } |
5c363129 | 523 | |
d603ed6c BB |
524 | if (error != dk_ioc->dki_length) { |
525 | if (efi_debug) | |
526 | (void) fprintf(stderr, "DKIOCGETEFI short " | |
a08ee875 | 527 | "read of %d bytes\n", error); |
d603ed6c | 528 | errno = EIO; |
a08ee875 | 529 | return (-1); |
d603ed6c BB |
530 | } |
531 | error = 0; | |
532 | break; | |
533 | ||
534 | case DKIOCSETEFI: | |
535 | if (lbsize == 0) { | |
536 | if (efi_debug) | |
537 | (void) fprintf(stderr, "DKIOCSETEFI unknown " | |
a08ee875 | 538 | "LBA size\n"); |
d603ed6c | 539 | errno = EIO; |
a08ee875 | 540 | return (-1); |
d603ed6c BB |
541 | } |
542 | ||
543 | error = lseek(fd, dk_ioc->dki_lba * lbsize, SEEK_SET); | |
544 | if (error == -1) { | |
545 | if (efi_debug) | |
546 | (void) fprintf(stderr, "DKIOCSETEFI lseek " | |
a08ee875 LG |
547 | "error: %d\n", errno); |
548 | return (error); | |
d603ed6c BB |
549 | } |
550 | ||
551 | error = write(fd, data, dk_ioc->dki_length); | |
552 | if (error == -1) { | |
553 | if (efi_debug) | |
554 | (void) fprintf(stderr, "DKIOCSETEFI write " | |
a08ee875 LG |
555 | "error: %d\n", errno); |
556 | return (error); | |
d603ed6c BB |
557 | } |
558 | ||
559 | if (error != dk_ioc->dki_length) { | |
560 | if (efi_debug) | |
561 | (void) fprintf(stderr, "DKIOCSETEFI short " | |
a08ee875 | 562 | "write of %d bytes\n", error); |
d603ed6c | 563 | errno = EIO; |
a08ee875 | 564 | return (-1); |
d603ed6c BB |
565 | } |
566 | ||
567 | /* Sync the new EFI table to disk */ | |
568 | error = fsync(fd); | |
569 | if (error == -1) | |
a08ee875 | 570 | return (error); |
d603ed6c BB |
571 | |
572 | /* Ensure any local disk cache is also flushed */ | |
573 | if (ioctl(fd, BLKFLSBUF, 0) == -1) | |
a08ee875 | 574 | return (error); |
d603ed6c BB |
575 | |
576 | error = 0; | |
577 | break; | |
578 | ||
579 | default: | |
580 | if (efi_debug) | |
581 | (void) fprintf(stderr, "unsupported ioctl()\n"); | |
582 | ||
583 | errno = EIO; | |
a08ee875 | 584 | return (-1); |
d603ed6c BB |
585 | } |
586 | #else | |
5c363129 BB |
587 | dk_ioc->dki_data_64 = (uint64_t)(uintptr_t)data; |
588 | error = ioctl(fd, cmd, (void *)dk_ioc); | |
589 | dk_ioc->dki_data = data; | |
d603ed6c | 590 | #endif |
5c363129 BB |
591 | return (error); |
592 | } | |
593 | ||
a08ee875 LG |
594 | int |
595 | efi_rescan(int fd) | |
d603ed6c | 596 | { |
b5a28807 | 597 | #if defined(__linux__) |
ea04106b | 598 | int retry = 10; |
d603ed6c BB |
599 | int error; |
600 | ||
601 | /* Notify the kernel a devices partition table has been updated */ | |
602 | while ((error = ioctl(fd, BLKRRPART)) != 0) { | |
ea04106b | 603 | if ((--retry == 0) || (errno != EBUSY)) { |
d603ed6c | 604 | (void) fprintf(stderr, "the kernel failed to rescan " |
a08ee875 | 605 | "the partition table: %d\n", errno); |
d603ed6c BB |
606 | return (-1); |
607 | } | |
ea04106b | 608 | usleep(50000); |
d603ed6c | 609 | } |
b5a28807 | 610 | #endif |
d603ed6c BB |
611 | |
612 | return (0); | |
613 | } | |
d603ed6c | 614 | |
5c363129 BB |
615 | static int |
616 | check_label(int fd, dk_efi_t *dk_ioc) | |
617 | { | |
618 | efi_gpt_t *efi; | |
619 | uint_t crc; | |
620 | ||
621 | if (efi_ioctl(fd, DKIOCGETEFI, dk_ioc) == -1) { | |
622 | switch (errno) { | |
623 | case EIO: | |
624 | return (VT_EIO); | |
625 | default: | |
626 | return (VT_ERROR); | |
627 | } | |
628 | } | |
629 | efi = dk_ioc->dki_data; | |
630 | if (efi->efi_gpt_Signature != LE_64(EFI_SIGNATURE)) { | |
631 | if (efi_debug) | |
632 | (void) fprintf(stderr, | |
633 | "Bad EFI signature: 0x%llx != 0x%llx\n", | |
634 | (long long)efi->efi_gpt_Signature, | |
635 | (long long)LE_64(EFI_SIGNATURE)); | |
636 | return (VT_EINVAL); | |
637 | } | |
638 | ||
639 | /* | |
640 | * check CRC of the header; the size of the header should | |
641 | * never be larger than one block | |
642 | */ | |
643 | crc = efi->efi_gpt_HeaderCRC32; | |
644 | efi->efi_gpt_HeaderCRC32 = 0; | |
7a023273 | 645 | len_t headerSize = (len_t)LE_32(efi->efi_gpt_HeaderSize); |
5c363129 | 646 | |
a08ee875 | 647 | if (headerSize < EFI_MIN_LABEL_SIZE || headerSize > EFI_LABEL_SIZE) { |
7a023273 ZB |
648 | if (efi_debug) |
649 | (void) fprintf(stderr, | |
cae5b340 AX |
650 | "Invalid EFI HeaderSize %llu. Assuming %d.\n", |
651 | headerSize, EFI_MIN_LABEL_SIZE); | |
7a023273 ZB |
652 | } |
653 | ||
654 | if ((headerSize > dk_ioc->dki_length) || | |
655 | crc != LE_32(efi_crc32((unsigned char *)efi, headerSize))) { | |
5c363129 BB |
656 | if (efi_debug) |
657 | (void) fprintf(stderr, | |
658 | "Bad EFI CRC: 0x%x != 0x%x\n", | |
7a023273 ZB |
659 | crc, LE_32(efi_crc32((unsigned char *)efi, |
660 | headerSize))); | |
5c363129 BB |
661 | return (VT_EINVAL); |
662 | } | |
663 | ||
664 | return (0); | |
665 | } | |
666 | ||
667 | static int | |
668 | efi_read(int fd, struct dk_gpt *vtoc) | |
669 | { | |
670 | int i, j; | |
671 | int label_len; | |
672 | int rval = 0; | |
673 | int md_flag = 0; | |
674 | int vdc_flag = 0; | |
d603ed6c BB |
675 | diskaddr_t capacity = 0; |
676 | uint_t lbsize = 0; | |
5c363129 BB |
677 | struct dk_minfo disk_info; |
678 | dk_efi_t dk_ioc; | |
679 | efi_gpt_t *efi; | |
680 | efi_gpe_t *efi_parts; | |
681 | struct dk_cinfo dki_info; | |
682 | uint32_t user_length; | |
683 | boolean_t legacy_label = B_FALSE; | |
684 | ||
685 | /* | |
686 | * get the partition number for this file descriptor. | |
687 | */ | |
d603ed6c | 688 | if ((rval = efi_get_info(fd, &dki_info)) != 0) |
a08ee875 | 689 | return (rval); |
d603ed6c | 690 | |
5c363129 BB |
691 | if ((strncmp(dki_info.dki_cname, "pseudo", 7) == 0) && |
692 | (strncmp(dki_info.dki_dname, "md", 3) == 0)) { | |
693 | md_flag++; | |
694 | } else if ((strncmp(dki_info.dki_cname, "vdc", 4) == 0) && | |
695 | (strncmp(dki_info.dki_dname, "vdc", 4) == 0)) { | |
696 | /* | |
697 | * The controller and drive name "vdc" (virtual disk client) | |
698 | * indicates a LDoms virtual disk. | |
699 | */ | |
700 | vdc_flag++; | |
701 | } | |
702 | ||
703 | /* get the LBA size */ | |
d603ed6c | 704 | if (read_disk_info(fd, &capacity, &lbsize) == -1) { |
5c363129 BB |
705 | if (efi_debug) { |
706 | (void) fprintf(stderr, | |
a08ee875 LG |
707 | "unable to read disk info: %d", |
708 | errno); | |
5c363129 | 709 | } |
d603ed6c | 710 | return (VT_EINVAL); |
5c363129 | 711 | } |
d603ed6c BB |
712 | |
713 | disk_info.dki_lbsize = lbsize; | |
714 | disk_info.dki_capacity = capacity; | |
715 | ||
5c363129 BB |
716 | if (disk_info.dki_lbsize == 0) { |
717 | if (efi_debug) { | |
718 | (void) fprintf(stderr, | |
719 | "efi_read: assuming LBA 512 bytes\n"); | |
720 | } | |
721 | disk_info.dki_lbsize = DEV_BSIZE; | |
722 | } | |
723 | /* | |
724 | * Read the EFI GPT to figure out how many partitions we need | |
725 | * to deal with. | |
726 | */ | |
727 | dk_ioc.dki_lba = 1; | |
728 | if (NBLOCKS(vtoc->efi_nparts, disk_info.dki_lbsize) < 34) { | |
729 | label_len = EFI_MIN_ARRAY_SIZE + disk_info.dki_lbsize; | |
730 | } else { | |
731 | label_len = vtoc->efi_nparts * (int) sizeof (efi_gpe_t) + | |
732 | disk_info.dki_lbsize; | |
733 | if (label_len % disk_info.dki_lbsize) { | |
734 | /* pad to physical sector size */ | |
735 | label_len += disk_info.dki_lbsize; | |
736 | label_len &= ~(disk_info.dki_lbsize - 1); | |
737 | } | |
738 | } | |
739 | ||
d603ed6c | 740 | if (posix_memalign((void **)&dk_ioc.dki_data, |
a08ee875 | 741 | disk_info.dki_lbsize, label_len)) |
5c363129 BB |
742 | return (VT_ERROR); |
743 | ||
d603ed6c | 744 | memset(dk_ioc.dki_data, 0, label_len); |
5c363129 BB |
745 | dk_ioc.dki_length = disk_info.dki_lbsize; |
746 | user_length = vtoc->efi_nparts; | |
747 | efi = dk_ioc.dki_data; | |
748 | if (md_flag) { | |
749 | dk_ioc.dki_length = label_len; | |
750 | if (efi_ioctl(fd, DKIOCGETEFI, &dk_ioc) == -1) { | |
751 | switch (errno) { | |
752 | case EIO: | |
753 | return (VT_EIO); | |
754 | default: | |
755 | return (VT_ERROR); | |
756 | } | |
757 | } | |
758 | } else if ((rval = check_label(fd, &dk_ioc)) == VT_EINVAL) { | |
759 | /* | |
760 | * No valid label here; try the alternate. Note that here | |
761 | * we just read GPT header and save it into dk_ioc.data, | |
762 | * Later, we will read GUID partition entry array if we | |
763 | * can get valid GPT header. | |
764 | */ | |
765 | ||
766 | /* | |
767 | * This is a workaround for legacy systems. In the past, the | |
768 | * last sector of SCSI disk was invisible on x86 platform. At | |
769 | * that time, backup label was saved on the next to the last | |
770 | * sector. It is possible for users to move a disk from previous | |
771 | * solaris system to present system. Here, we attempt to search | |
772 | * legacy backup EFI label first. | |
773 | */ | |
774 | dk_ioc.dki_lba = disk_info.dki_capacity - 2; | |
775 | dk_ioc.dki_length = disk_info.dki_lbsize; | |
776 | rval = check_label(fd, &dk_ioc); | |
777 | if (rval == VT_EINVAL) { | |
778 | /* | |
779 | * we didn't find legacy backup EFI label, try to | |
780 | * search backup EFI label in the last block. | |
781 | */ | |
782 | dk_ioc.dki_lba = disk_info.dki_capacity - 1; | |
783 | dk_ioc.dki_length = disk_info.dki_lbsize; | |
784 | rval = check_label(fd, &dk_ioc); | |
785 | if (rval == 0) { | |
786 | legacy_label = B_TRUE; | |
787 | if (efi_debug) | |
788 | (void) fprintf(stderr, | |
789 | "efi_read: primary label corrupt; " | |
790 | "using EFI backup label located on" | |
791 | " the last block\n"); | |
792 | } | |
793 | } else { | |
794 | if ((efi_debug) && (rval == 0)) | |
795 | (void) fprintf(stderr, "efi_read: primary label" | |
796 | " corrupt; using legacy EFI backup label " | |
797 | " located on the next to last block\n"); | |
798 | } | |
799 | ||
800 | if (rval == 0) { | |
801 | dk_ioc.dki_lba = LE_64(efi->efi_gpt_PartitionEntryLBA); | |
802 | vtoc->efi_flags |= EFI_GPT_PRIMARY_CORRUPT; | |
803 | vtoc->efi_nparts = | |
804 | LE_32(efi->efi_gpt_NumberOfPartitionEntries); | |
805 | /* | |
806 | * Partition tables are between backup GPT header | |
807 | * table and ParitionEntryLBA (the starting LBA of | |
808 | * the GUID partition entries array). Now that we | |
809 | * already got valid GPT header and saved it in | |
810 | * dk_ioc.dki_data, we try to get GUID partition | |
811 | * entry array here. | |
812 | */ | |
813 | /* LINTED */ | |
814 | dk_ioc.dki_data = (efi_gpt_t *)((char *)dk_ioc.dki_data | |
815 | + disk_info.dki_lbsize); | |
816 | if (legacy_label) | |
817 | dk_ioc.dki_length = disk_info.dki_capacity - 1 - | |
818 | dk_ioc.dki_lba; | |
819 | else | |
820 | dk_ioc.dki_length = disk_info.dki_capacity - 2 - | |
821 | dk_ioc.dki_lba; | |
822 | dk_ioc.dki_length *= disk_info.dki_lbsize; | |
823 | if (dk_ioc.dki_length > | |
824 | ((len_t)label_len - sizeof (*dk_ioc.dki_data))) { | |
825 | rval = VT_EINVAL; | |
826 | } else { | |
827 | /* | |
828 | * read GUID partition entry array | |
829 | */ | |
830 | rval = efi_ioctl(fd, DKIOCGETEFI, &dk_ioc); | |
831 | } | |
832 | } | |
833 | ||
834 | } else if (rval == 0) { | |
835 | ||
836 | dk_ioc.dki_lba = LE_64(efi->efi_gpt_PartitionEntryLBA); | |
837 | /* LINTED */ | |
838 | dk_ioc.dki_data = (efi_gpt_t *)((char *)dk_ioc.dki_data | |
839 | + disk_info.dki_lbsize); | |
840 | dk_ioc.dki_length = label_len - disk_info.dki_lbsize; | |
841 | rval = efi_ioctl(fd, DKIOCGETEFI, &dk_ioc); | |
842 | ||
843 | } else if (vdc_flag && rval == VT_ERROR && errno == EINVAL) { | |
844 | /* | |
845 | * When the device is a LDoms virtual disk, the DKIOCGETEFI | |
846 | * ioctl can fail with EINVAL if the virtual disk backend | |
847 | * is a ZFS volume serviced by a domain running an old version | |
848 | * of Solaris. This is because the DKIOCGETEFI ioctl was | |
849 | * initially incorrectly implemented for a ZFS volume and it | |
850 | * expected the GPT and GPE to be retrieved with a single ioctl. | |
851 | * So we try to read the GPT and the GPE using that old style | |
852 | * ioctl. | |
853 | */ | |
854 | dk_ioc.dki_lba = 1; | |
855 | dk_ioc.dki_length = label_len; | |
856 | rval = check_label(fd, &dk_ioc); | |
857 | } | |
858 | ||
859 | if (rval < 0) { | |
860 | free(efi); | |
861 | return (rval); | |
862 | } | |
863 | ||
864 | /* LINTED -- always longlong aligned */ | |
865 | efi_parts = (efi_gpe_t *)(((char *)efi) + disk_info.dki_lbsize); | |
866 | ||
867 | /* | |
868 | * Assemble this into a "dk_gpt" struct for easier | |
869 | * digestibility by applications. | |
870 | */ | |
871 | vtoc->efi_version = LE_32(efi->efi_gpt_Revision); | |
872 | vtoc->efi_nparts = LE_32(efi->efi_gpt_NumberOfPartitionEntries); | |
873 | vtoc->efi_part_size = LE_32(efi->efi_gpt_SizeOfPartitionEntry); | |
874 | vtoc->efi_lbasize = disk_info.dki_lbsize; | |
875 | vtoc->efi_last_lba = disk_info.dki_capacity - 1; | |
876 | vtoc->efi_first_u_lba = LE_64(efi->efi_gpt_FirstUsableLBA); | |
877 | vtoc->efi_last_u_lba = LE_64(efi->efi_gpt_LastUsableLBA); | |
878 | vtoc->efi_altern_lba = LE_64(efi->efi_gpt_AlternateLBA); | |
879 | UUID_LE_CONVERT(vtoc->efi_disk_uguid, efi->efi_gpt_DiskGUID); | |
880 | ||
881 | /* | |
882 | * If the array the user passed in is too small, set the length | |
883 | * to what it needs to be and return | |
884 | */ | |
885 | if (user_length < vtoc->efi_nparts) { | |
886 | return (VT_EINVAL); | |
887 | } | |
888 | ||
889 | for (i = 0; i < vtoc->efi_nparts; i++) { | |
890 | ||
891 | UUID_LE_CONVERT(vtoc->efi_parts[i].p_guid, | |
892 | efi_parts[i].efi_gpe_PartitionTypeGUID); | |
893 | ||
894 | for (j = 0; | |
895 | j < sizeof (conversion_array) | |
896 | / sizeof (struct uuid_to_ptag); j++) { | |
897 | ||
898 | if (bcmp(&vtoc->efi_parts[i].p_guid, | |
899 | &conversion_array[j].uuid, | |
900 | sizeof (struct uuid)) == 0) { | |
901 | vtoc->efi_parts[i].p_tag = j; | |
902 | break; | |
903 | } | |
904 | } | |
905 | if (vtoc->efi_parts[i].p_tag == V_UNASSIGNED) | |
906 | continue; | |
907 | vtoc->efi_parts[i].p_flag = | |
908 | LE_16(efi_parts[i].efi_gpe_Attributes.PartitionAttrs); | |
909 | vtoc->efi_parts[i].p_start = | |
910 | LE_64(efi_parts[i].efi_gpe_StartingLBA); | |
911 | vtoc->efi_parts[i].p_size = | |
912 | LE_64(efi_parts[i].efi_gpe_EndingLBA) - | |
913 | vtoc->efi_parts[i].p_start + 1; | |
914 | for (j = 0; j < EFI_PART_NAME_LEN; j++) { | |
915 | vtoc->efi_parts[i].p_name[j] = | |
916 | (uchar_t)LE_16( | |
917 | efi_parts[i].efi_gpe_PartitionName[j]); | |
918 | } | |
919 | ||
920 | UUID_LE_CONVERT(vtoc->efi_parts[i].p_uguid, | |
921 | efi_parts[i].efi_gpe_UniquePartitionGUID); | |
922 | } | |
923 | free(efi); | |
924 | ||
925 | return (dki_info.dki_partition); | |
926 | } | |
927 | ||
928 | /* writes a "protective" MBR */ | |
929 | static int | |
930 | write_pmbr(int fd, struct dk_gpt *vtoc) | |
931 | { | |
932 | dk_efi_t dk_ioc; | |
933 | struct mboot mb; | |
934 | uchar_t *cp; | |
935 | diskaddr_t size_in_lba; | |
936 | uchar_t *buf; | |
937 | int len; | |
938 | ||
939 | len = (vtoc->efi_lbasize == 0) ? sizeof (mb) : vtoc->efi_lbasize; | |
d603ed6c BB |
940 | if (posix_memalign((void **)&buf, len, len)) |
941 | return (VT_ERROR); | |
5c363129 BB |
942 | |
943 | /* | |
944 | * Preserve any boot code and disk signature if the first block is | |
945 | * already an MBR. | |
946 | */ | |
d603ed6c | 947 | memset(buf, 0, len); |
5c363129 BB |
948 | dk_ioc.dki_lba = 0; |
949 | dk_ioc.dki_length = len; | |
950 | /* LINTED -- always longlong aligned */ | |
951 | dk_ioc.dki_data = (efi_gpt_t *)buf; | |
952 | if (efi_ioctl(fd, DKIOCGETEFI, &dk_ioc) == -1) { | |
ea04106b | 953 | (void) memcpy(&mb, buf, sizeof (mb)); |
5c363129 BB |
954 | bzero(&mb, sizeof (mb)); |
955 | mb.signature = LE_16(MBB_MAGIC); | |
956 | } else { | |
ea04106b | 957 | (void) memcpy(&mb, buf, sizeof (mb)); |
5c363129 BB |
958 | if (mb.signature != LE_16(MBB_MAGIC)) { |
959 | bzero(&mb, sizeof (mb)); | |
960 | mb.signature = LE_16(MBB_MAGIC); | |
961 | } | |
962 | } | |
963 | ||
964 | bzero(&mb.parts, sizeof (mb.parts)); | |
965 | cp = (uchar_t *)&mb.parts[0]; | |
966 | /* bootable or not */ | |
967 | *cp++ = 0; | |
968 | /* beginning CHS; 0xffffff if not representable */ | |
969 | *cp++ = 0xff; | |
970 | *cp++ = 0xff; | |
971 | *cp++ = 0xff; | |
972 | /* OS type */ | |
973 | *cp++ = EFI_PMBR; | |
974 | /* ending CHS; 0xffffff if not representable */ | |
975 | *cp++ = 0xff; | |
976 | *cp++ = 0xff; | |
977 | *cp++ = 0xff; | |
978 | /* starting LBA: 1 (little endian format) by EFI definition */ | |
979 | *cp++ = 0x01; | |
980 | *cp++ = 0x00; | |
981 | *cp++ = 0x00; | |
982 | *cp++ = 0x00; | |
983 | /* ending LBA: last block on the disk (little endian format) */ | |
984 | size_in_lba = vtoc->efi_last_lba; | |
985 | if (size_in_lba < 0xffffffff) { | |
986 | *cp++ = (size_in_lba & 0x000000ff); | |
987 | *cp++ = (size_in_lba & 0x0000ff00) >> 8; | |
988 | *cp++ = (size_in_lba & 0x00ff0000) >> 16; | |
989 | *cp++ = (size_in_lba & 0xff000000) >> 24; | |
990 | } else { | |
991 | *cp++ = 0xff; | |
992 | *cp++ = 0xff; | |
993 | *cp++ = 0xff; | |
994 | *cp++ = 0xff; | |
995 | } | |
996 | ||
ea04106b | 997 | (void) memcpy(buf, &mb, sizeof (mb)); |
5c363129 BB |
998 | /* LINTED -- always longlong aligned */ |
999 | dk_ioc.dki_data = (efi_gpt_t *)buf; | |
1000 | dk_ioc.dki_lba = 0; | |
1001 | dk_ioc.dki_length = len; | |
1002 | if (efi_ioctl(fd, DKIOCSETEFI, &dk_ioc) == -1) { | |
1003 | free(buf); | |
1004 | switch (errno) { | |
1005 | case EIO: | |
1006 | return (VT_EIO); | |
1007 | case EINVAL: | |
1008 | return (VT_EINVAL); | |
1009 | default: | |
1010 | return (VT_ERROR); | |
1011 | } | |
1012 | } | |
1013 | free(buf); | |
1014 | return (0); | |
1015 | } | |
1016 | ||
1017 | /* make sure the user specified something reasonable */ | |
1018 | static int | |
1019 | check_input(struct dk_gpt *vtoc) | |
1020 | { | |
1021 | int resv_part = -1; | |
1022 | int i, j; | |
1023 | diskaddr_t istart, jstart, isize, jsize, endsect; | |
1024 | ||
1025 | /* | |
1026 | * Sanity-check the input (make sure no partitions overlap) | |
1027 | */ | |
1028 | for (i = 0; i < vtoc->efi_nparts; i++) { | |
1029 | /* It can't be unassigned and have an actual size */ | |
1030 | if ((vtoc->efi_parts[i].p_tag == V_UNASSIGNED) && | |
1031 | (vtoc->efi_parts[i].p_size != 0)) { | |
1032 | if (efi_debug) { | |
d603ed6c BB |
1033 | (void) fprintf(stderr, "partition %d is " |
1034 | "\"unassigned\" but has a size of %llu", | |
1035 | i, vtoc->efi_parts[i].p_size); | |
5c363129 BB |
1036 | } |
1037 | return (VT_EINVAL); | |
1038 | } | |
1039 | if (vtoc->efi_parts[i].p_tag == V_UNASSIGNED) { | |
1040 | if (uuid_is_null((uchar_t *)&vtoc->efi_parts[i].p_guid)) | |
1041 | continue; | |
1042 | /* we have encountered an unknown uuid */ | |
1043 | vtoc->efi_parts[i].p_tag = 0xff; | |
1044 | } | |
1045 | if (vtoc->efi_parts[i].p_tag == V_RESERVED) { | |
1046 | if (resv_part != -1) { | |
1047 | if (efi_debug) { | |
d603ed6c BB |
1048 | (void) fprintf(stderr, "found " |
1049 | "duplicate reserved partition " | |
1050 | "at %d\n", i); | |
5c363129 BB |
1051 | } |
1052 | return (VT_EINVAL); | |
1053 | } | |
1054 | resv_part = i; | |
1055 | } | |
1056 | if ((vtoc->efi_parts[i].p_start < vtoc->efi_first_u_lba) || | |
1057 | (vtoc->efi_parts[i].p_start > vtoc->efi_last_u_lba)) { | |
1058 | if (efi_debug) { | |
1059 | (void) fprintf(stderr, | |
1060 | "Partition %d starts at %llu. ", | |
1061 | i, | |
1062 | vtoc->efi_parts[i].p_start); | |
1063 | (void) fprintf(stderr, | |
1064 | "It must be between %llu and %llu.\n", | |
1065 | vtoc->efi_first_u_lba, | |
1066 | vtoc->efi_last_u_lba); | |
1067 | } | |
1068 | return (VT_EINVAL); | |
1069 | } | |
1070 | if ((vtoc->efi_parts[i].p_start + | |
1071 | vtoc->efi_parts[i].p_size < | |
1072 | vtoc->efi_first_u_lba) || | |
1073 | (vtoc->efi_parts[i].p_start + | |
1074 | vtoc->efi_parts[i].p_size > | |
1075 | vtoc->efi_last_u_lba + 1)) { | |
1076 | if (efi_debug) { | |
1077 | (void) fprintf(stderr, | |
1078 | "Partition %d ends at %llu. ", | |
1079 | i, | |
1080 | vtoc->efi_parts[i].p_start + | |
1081 | vtoc->efi_parts[i].p_size); | |
1082 | (void) fprintf(stderr, | |
1083 | "It must be between %llu and %llu.\n", | |
1084 | vtoc->efi_first_u_lba, | |
1085 | vtoc->efi_last_u_lba); | |
1086 | } | |
1087 | return (VT_EINVAL); | |
1088 | } | |
1089 | ||
1090 | for (j = 0; j < vtoc->efi_nparts; j++) { | |
1091 | isize = vtoc->efi_parts[i].p_size; | |
1092 | jsize = vtoc->efi_parts[j].p_size; | |
1093 | istart = vtoc->efi_parts[i].p_start; | |
1094 | jstart = vtoc->efi_parts[j].p_start; | |
1095 | if ((i != j) && (isize != 0) && (jsize != 0)) { | |
1096 | endsect = jstart + jsize -1; | |
1097 | if ((jstart <= istart) && | |
1098 | (istart <= endsect)) { | |
1099 | if (efi_debug) { | |
1100 | (void) fprintf(stderr, | |
d603ed6c BB |
1101 | "Partition %d overlaps " |
1102 | "partition %d.", i, j); | |
5c363129 BB |
1103 | } |
1104 | return (VT_EINVAL); | |
1105 | } | |
1106 | } | |
1107 | } | |
1108 | } | |
1109 | /* just a warning for now */ | |
1110 | if ((resv_part == -1) && efi_debug) { | |
1111 | (void) fprintf(stderr, | |
1112 | "no reserved partition found\n"); | |
1113 | } | |
1114 | return (0); | |
1115 | } | |
1116 | ||
1117 | /* | |
1118 | * add all the unallocated space to the current label | |
1119 | */ | |
1120 | int | |
1121 | efi_use_whole_disk(int fd) | |
1122 | { | |
cae5b340 | 1123 | struct dk_gpt *efi_label = NULL; |
5c363129 BB |
1124 | int rval; |
1125 | int i; | |
cee43a74 ED |
1126 | uint_t resv_index = 0, data_index = 0; |
1127 | diskaddr_t resv_start = 0, data_start = 0; | |
1128 | diskaddr_t difference; | |
5c363129 BB |
1129 | |
1130 | rval = efi_alloc_and_read(fd, &efi_label); | |
1131 | if (rval < 0) { | |
cae5b340 AX |
1132 | if (efi_label != NULL) |
1133 | efi_free(efi_label); | |
5c363129 BB |
1134 | return (rval); |
1135 | } | |
1136 | ||
5c363129 BB |
1137 | /* |
1138 | * If alter_lba is 1, we are using the backup label. | |
1139 | * Since we can locate the backup label by disk capacity, | |
1140 | * there must be no unallocated space. | |
1141 | */ | |
1142 | if ((efi_label->efi_altern_lba == 1) || (efi_label->efi_altern_lba | |
1143 | >= efi_label->efi_last_lba)) { | |
1144 | if (efi_debug) { | |
1145 | (void) fprintf(stderr, | |
1146 | "efi_use_whole_disk: requested space not found\n"); | |
1147 | } | |
1148 | efi_free(efi_label); | |
1149 | return (VT_ENOSPC); | |
1150 | } | |
1151 | ||
cee43a74 ED |
1152 | difference = efi_label->efi_last_lba - efi_label->efi_altern_lba; |
1153 | ||
1154 | /* | |
1155 | * Find the last physically non-zero partition. | |
1156 | * This is the reserved partition. | |
1157 | */ | |
1158 | for (i = 0; i < efi_label->efi_nparts; i ++) { | |
1159 | if (resv_start < efi_label->efi_parts[i].p_start) { | |
1160 | resv_start = efi_label->efi_parts[i].p_start; | |
1161 | resv_index = i; | |
1162 | } | |
1163 | } | |
1164 | ||
5c363129 | 1165 | /* |
cee43a74 ED |
1166 | * Find the last physically non-zero partition before that. |
1167 | * This is the data partition. | |
5c363129 | 1168 | */ |
cee43a74 ED |
1169 | for (i = 0; i < resv_index; i ++) { |
1170 | if (data_start < efi_label->efi_parts[i].p_start) { | |
1171 | data_start = efi_label->efi_parts[i].p_start; | |
1172 | data_index = i; | |
1173 | } | |
5c363129 BB |
1174 | } |
1175 | ||
1176 | /* | |
1177 | * Move the reserved partition. There is currently no data in | |
1178 | * here except fabricated devids (which get generated via | |
1179 | * efi_write()). So there is no need to copy data. | |
1180 | */ | |
cee43a74 ED |
1181 | efi_label->efi_parts[data_index].p_size += difference; |
1182 | efi_label->efi_parts[resv_index].p_start += difference; | |
1183 | efi_label->efi_last_u_lba += difference; | |
5c363129 BB |
1184 | |
1185 | rval = efi_write(fd, efi_label); | |
1186 | if (rval < 0) { | |
1187 | if (efi_debug) { | |
1188 | (void) fprintf(stderr, | |
1189 | "efi_use_whole_disk:fail to write label, rval=%d\n", | |
1190 | rval); | |
1191 | } | |
1192 | efi_free(efi_label); | |
1193 | return (rval); | |
1194 | } | |
1195 | ||
1196 | efi_free(efi_label); | |
1197 | return (0); | |
1198 | } | |
1199 | ||
1200 | ||
1201 | /* | |
1202 | * write EFI label and backup label | |
1203 | */ | |
1204 | int | |
1205 | efi_write(int fd, struct dk_gpt *vtoc) | |
1206 | { | |
1207 | dk_efi_t dk_ioc; | |
1208 | efi_gpt_t *efi; | |
1209 | efi_gpe_t *efi_parts; | |
1210 | int i, j; | |
1211 | struct dk_cinfo dki_info; | |
d603ed6c | 1212 | int rval; |
5c363129 BB |
1213 | int md_flag = 0; |
1214 | int nblocks; | |
1215 | diskaddr_t lba_backup_gpt_hdr; | |
1216 | ||
d603ed6c | 1217 | if ((rval = efi_get_info(fd, &dki_info)) != 0) |
a08ee875 | 1218 | return (rval); |
5c363129 BB |
1219 | |
1220 | /* check if we are dealing wih a metadevice */ | |
1221 | if ((strncmp(dki_info.dki_cname, "pseudo", 7) == 0) && | |
1222 | (strncmp(dki_info.dki_dname, "md", 3) == 0)) { | |
1223 | md_flag = 1; | |
1224 | } | |
1225 | ||
1226 | if (check_input(vtoc)) { | |
1227 | /* | |
1228 | * not valid; if it's a metadevice just pass it down | |
1229 | * because SVM will do its own checking | |
1230 | */ | |
1231 | if (md_flag == 0) { | |
1232 | return (VT_EINVAL); | |
1233 | } | |
1234 | } | |
1235 | ||
1236 | dk_ioc.dki_lba = 1; | |
1237 | if (NBLOCKS(vtoc->efi_nparts, vtoc->efi_lbasize) < 34) { | |
1238 | dk_ioc.dki_length = EFI_MIN_ARRAY_SIZE + vtoc->efi_lbasize; | |
1239 | } else { | |
1240 | dk_ioc.dki_length = NBLOCKS(vtoc->efi_nparts, | |
1241 | vtoc->efi_lbasize) * | |
1242 | vtoc->efi_lbasize; | |
1243 | } | |
1244 | ||
1245 | /* | |
1246 | * the number of blocks occupied by GUID partition entry array | |
1247 | */ | |
1248 | nblocks = dk_ioc.dki_length / vtoc->efi_lbasize - 1; | |
1249 | ||
1250 | /* | |
1251 | * Backup GPT header is located on the block after GUID | |
1252 | * partition entry array. Here, we calculate the address | |
1253 | * for backup GPT header. | |
1254 | */ | |
1255 | lba_backup_gpt_hdr = vtoc->efi_last_u_lba + 1 + nblocks; | |
d603ed6c | 1256 | if (posix_memalign((void **)&dk_ioc.dki_data, |
a08ee875 | 1257 | vtoc->efi_lbasize, dk_ioc.dki_length)) |
5c363129 BB |
1258 | return (VT_ERROR); |
1259 | ||
d603ed6c | 1260 | memset(dk_ioc.dki_data, 0, dk_ioc.dki_length); |
5c363129 BB |
1261 | efi = dk_ioc.dki_data; |
1262 | ||
1263 | /* stuff user's input into EFI struct */ | |
1264 | efi->efi_gpt_Signature = LE_64(EFI_SIGNATURE); | |
1265 | efi->efi_gpt_Revision = LE_32(vtoc->efi_version); /* 0x02000100 */ | |
7a023273 | 1266 | efi->efi_gpt_HeaderSize = LE_32(sizeof (struct efi_gpt) - LEN_EFI_PAD); |
5c363129 BB |
1267 | efi->efi_gpt_Reserved1 = 0; |
1268 | efi->efi_gpt_MyLBA = LE_64(1ULL); | |
1269 | efi->efi_gpt_AlternateLBA = LE_64(lba_backup_gpt_hdr); | |
1270 | efi->efi_gpt_FirstUsableLBA = LE_64(vtoc->efi_first_u_lba); | |
1271 | efi->efi_gpt_LastUsableLBA = LE_64(vtoc->efi_last_u_lba); | |
1272 | efi->efi_gpt_PartitionEntryLBA = LE_64(2ULL); | |
1273 | efi->efi_gpt_NumberOfPartitionEntries = LE_32(vtoc->efi_nparts); | |
1274 | efi->efi_gpt_SizeOfPartitionEntry = LE_32(sizeof (struct efi_gpe)); | |
1275 | UUID_LE_CONVERT(efi->efi_gpt_DiskGUID, vtoc->efi_disk_uguid); | |
1276 | ||
1277 | /* LINTED -- always longlong aligned */ | |
1278 | efi_parts = (efi_gpe_t *)((char *)dk_ioc.dki_data + vtoc->efi_lbasize); | |
1279 | ||
1280 | for (i = 0; i < vtoc->efi_nparts; i++) { | |
1281 | for (j = 0; | |
1282 | j < sizeof (conversion_array) / | |
1283 | sizeof (struct uuid_to_ptag); j++) { | |
1284 | ||
1285 | if (vtoc->efi_parts[i].p_tag == j) { | |
1286 | UUID_LE_CONVERT( | |
1287 | efi_parts[i].efi_gpe_PartitionTypeGUID, | |
1288 | conversion_array[j].uuid); | |
1289 | break; | |
1290 | } | |
1291 | } | |
1292 | ||
1293 | if (j == sizeof (conversion_array) / | |
1294 | sizeof (struct uuid_to_ptag)) { | |
1295 | /* | |
1296 | * If we didn't have a matching uuid match, bail here. | |
1297 | * Don't write a label with unknown uuid. | |
1298 | */ | |
1299 | if (efi_debug) { | |
1300 | (void) fprintf(stderr, | |
1301 | "Unknown uuid for p_tag %d\n", | |
1302 | vtoc->efi_parts[i].p_tag); | |
1303 | } | |
1304 | return (VT_EINVAL); | |
1305 | } | |
1306 | ||
d603ed6c BB |
1307 | /* Zero's should be written for empty partitions */ |
1308 | if (vtoc->efi_parts[i].p_tag == V_UNASSIGNED) | |
1309 | continue; | |
1310 | ||
5c363129 BB |
1311 | efi_parts[i].efi_gpe_StartingLBA = |
1312 | LE_64(vtoc->efi_parts[i].p_start); | |
1313 | efi_parts[i].efi_gpe_EndingLBA = | |
1314 | LE_64(vtoc->efi_parts[i].p_start + | |
1315 | vtoc->efi_parts[i].p_size - 1); | |
1316 | efi_parts[i].efi_gpe_Attributes.PartitionAttrs = | |
1317 | LE_16(vtoc->efi_parts[i].p_flag); | |
1318 | for (j = 0; j < EFI_PART_NAME_LEN; j++) { | |
1319 | efi_parts[i].efi_gpe_PartitionName[j] = | |
1320 | LE_16((ushort_t)vtoc->efi_parts[i].p_name[j]); | |
1321 | } | |
1322 | if ((vtoc->efi_parts[i].p_tag != V_UNASSIGNED) && | |
1323 | uuid_is_null((uchar_t *)&vtoc->efi_parts[i].p_uguid)) { | |
1324 | (void) uuid_generate((uchar_t *) | |
1325 | &vtoc->efi_parts[i].p_uguid); | |
1326 | } | |
1327 | bcopy(&vtoc->efi_parts[i].p_uguid, | |
1328 | &efi_parts[i].efi_gpe_UniquePartitionGUID, | |
1329 | sizeof (uuid_t)); | |
1330 | } | |
1331 | efi->efi_gpt_PartitionEntryArrayCRC32 = | |
1332 | LE_32(efi_crc32((unsigned char *)efi_parts, | |
1333 | vtoc->efi_nparts * (int)sizeof (struct efi_gpe))); | |
1334 | efi->efi_gpt_HeaderCRC32 = | |
7a023273 ZB |
1335 | LE_32(efi_crc32((unsigned char *)efi, |
1336 | LE_32(efi->efi_gpt_HeaderSize))); | |
5c363129 BB |
1337 | |
1338 | if (efi_ioctl(fd, DKIOCSETEFI, &dk_ioc) == -1) { | |
1339 | free(dk_ioc.dki_data); | |
1340 | switch (errno) { | |
1341 | case EIO: | |
1342 | return (VT_EIO); | |
1343 | case EINVAL: | |
1344 | return (VT_EINVAL); | |
1345 | default: | |
1346 | return (VT_ERROR); | |
1347 | } | |
1348 | } | |
1349 | /* if it's a metadevice we're done */ | |
1350 | if (md_flag) { | |
1351 | free(dk_ioc.dki_data); | |
1352 | return (0); | |
1353 | } | |
1354 | ||
1355 | /* write backup partition array */ | |
1356 | dk_ioc.dki_lba = vtoc->efi_last_u_lba + 1; | |
1357 | dk_ioc.dki_length -= vtoc->efi_lbasize; | |
1358 | /* LINTED */ | |
1359 | dk_ioc.dki_data = (efi_gpt_t *)((char *)dk_ioc.dki_data + | |
1360 | vtoc->efi_lbasize); | |
1361 | ||
1362 | if (efi_ioctl(fd, DKIOCSETEFI, &dk_ioc) == -1) { | |
1363 | /* | |
1364 | * we wrote the primary label okay, so don't fail | |
1365 | */ | |
1366 | if (efi_debug) { | |
1367 | (void) fprintf(stderr, | |
1368 | "write of backup partitions to block %llu " | |
1369 | "failed, errno %d\n", | |
1370 | vtoc->efi_last_u_lba + 1, | |
1371 | errno); | |
1372 | } | |
1373 | } | |
1374 | /* | |
1375 | * now swap MyLBA and AlternateLBA fields and write backup | |
1376 | * partition table header | |
1377 | */ | |
1378 | dk_ioc.dki_lba = lba_backup_gpt_hdr; | |
1379 | dk_ioc.dki_length = vtoc->efi_lbasize; | |
1380 | /* LINTED */ | |
1381 | dk_ioc.dki_data = (efi_gpt_t *)((char *)dk_ioc.dki_data - | |
1382 | vtoc->efi_lbasize); | |
1383 | efi->efi_gpt_AlternateLBA = LE_64(1ULL); | |
1384 | efi->efi_gpt_MyLBA = LE_64(lba_backup_gpt_hdr); | |
1385 | efi->efi_gpt_PartitionEntryLBA = LE_64(vtoc->efi_last_u_lba + 1); | |
1386 | efi->efi_gpt_HeaderCRC32 = 0; | |
1387 | efi->efi_gpt_HeaderCRC32 = | |
1388 | LE_32(efi_crc32((unsigned char *)dk_ioc.dki_data, | |
7a023273 | 1389 | LE_32(efi->efi_gpt_HeaderSize))); |
5c363129 BB |
1390 | |
1391 | if (efi_ioctl(fd, DKIOCSETEFI, &dk_ioc) == -1) { | |
1392 | if (efi_debug) { | |
1393 | (void) fprintf(stderr, | |
1394 | "write of backup header to block %llu failed, " | |
1395 | "errno %d\n", | |
1396 | lba_backup_gpt_hdr, | |
1397 | errno); | |
1398 | } | |
1399 | } | |
1400 | /* write the PMBR */ | |
1401 | (void) write_pmbr(fd, vtoc); | |
1402 | free(dk_ioc.dki_data); | |
d603ed6c | 1403 | |
5c363129 BB |
1404 | return (0); |
1405 | } | |
1406 | ||
1407 | void | |
1408 | efi_free(struct dk_gpt *ptr) | |
1409 | { | |
1410 | free(ptr); | |
1411 | } | |
1412 | ||
1413 | /* | |
1414 | * Input: File descriptor | |
1415 | * Output: 1 if disk has an EFI label, or > 2TB with no VTOC or legacy MBR. | |
1416 | * Otherwise 0. | |
1417 | */ | |
1418 | int | |
1419 | efi_type(int fd) | |
1420 | { | |
d603ed6c | 1421 | #if 0 |
5c363129 BB |
1422 | struct vtoc vtoc; |
1423 | struct extvtoc extvtoc; | |
1424 | ||
1425 | if (ioctl(fd, DKIOCGEXTVTOC, &extvtoc) == -1) { | |
1426 | if (errno == ENOTSUP) | |
1427 | return (1); | |
1428 | else if (errno == ENOTTY) { | |
1429 | if (ioctl(fd, DKIOCGVTOC, &vtoc) == -1) | |
1430 | if (errno == ENOTSUP) | |
1431 | return (1); | |
1432 | } | |
1433 | } | |
1434 | return (0); | |
d603ed6c BB |
1435 | #else |
1436 | return (ENOSYS); | |
1437 | #endif | |
5c363129 BB |
1438 | } |
1439 | ||
1440 | void | |
1441 | efi_err_check(struct dk_gpt *vtoc) | |
1442 | { | |
1443 | int resv_part = -1; | |
1444 | int i, j; | |
1445 | diskaddr_t istart, jstart, isize, jsize, endsect; | |
1446 | int overlap = 0; | |
1447 | ||
1448 | /* | |
1449 | * make sure no partitions overlap | |
1450 | */ | |
1451 | for (i = 0; i < vtoc->efi_nparts; i++) { | |
1452 | /* It can't be unassigned and have an actual size */ | |
1453 | if ((vtoc->efi_parts[i].p_tag == V_UNASSIGNED) && | |
1454 | (vtoc->efi_parts[i].p_size != 0)) { | |
1455 | (void) fprintf(stderr, | |
1456 | "partition %d is \"unassigned\" but has a size " | |
1457 | "of %llu\n", i, vtoc->efi_parts[i].p_size); | |
1458 | } | |
1459 | if (vtoc->efi_parts[i].p_tag == V_UNASSIGNED) { | |
1460 | continue; | |
1461 | } | |
1462 | if (vtoc->efi_parts[i].p_tag == V_RESERVED) { | |
1463 | if (resv_part != -1) { | |
1464 | (void) fprintf(stderr, | |
1465 | "found duplicate reserved partition at " | |
1466 | "%d\n", i); | |
1467 | } | |
1468 | resv_part = i; | |
1469 | if (vtoc->efi_parts[i].p_size != EFI_MIN_RESV_SIZE) | |
1470 | (void) fprintf(stderr, | |
1471 | "Warning: reserved partition size must " | |
1472 | "be %d sectors\n", EFI_MIN_RESV_SIZE); | |
1473 | } | |
1474 | if ((vtoc->efi_parts[i].p_start < vtoc->efi_first_u_lba) || | |
1475 | (vtoc->efi_parts[i].p_start > vtoc->efi_last_u_lba)) { | |
1476 | (void) fprintf(stderr, | |
1477 | "Partition %d starts at %llu\n", | |
1478 | i, | |
1479 | vtoc->efi_parts[i].p_start); | |
1480 | (void) fprintf(stderr, | |
1481 | "It must be between %llu and %llu.\n", | |
1482 | vtoc->efi_first_u_lba, | |
1483 | vtoc->efi_last_u_lba); | |
1484 | } | |
1485 | if ((vtoc->efi_parts[i].p_start + | |
1486 | vtoc->efi_parts[i].p_size < | |
1487 | vtoc->efi_first_u_lba) || | |
1488 | (vtoc->efi_parts[i].p_start + | |
1489 | vtoc->efi_parts[i].p_size > | |
1490 | vtoc->efi_last_u_lba + 1)) { | |
1491 | (void) fprintf(stderr, | |
1492 | "Partition %d ends at %llu\n", | |
1493 | i, | |
1494 | vtoc->efi_parts[i].p_start + | |
1495 | vtoc->efi_parts[i].p_size); | |
1496 | (void) fprintf(stderr, | |
1497 | "It must be between %llu and %llu.\n", | |
1498 | vtoc->efi_first_u_lba, | |
1499 | vtoc->efi_last_u_lba); | |
1500 | } | |
1501 | ||
1502 | for (j = 0; j < vtoc->efi_nparts; j++) { | |
1503 | isize = vtoc->efi_parts[i].p_size; | |
1504 | jsize = vtoc->efi_parts[j].p_size; | |
1505 | istart = vtoc->efi_parts[i].p_start; | |
1506 | jstart = vtoc->efi_parts[j].p_start; | |
1507 | if ((i != j) && (isize != 0) && (jsize != 0)) { | |
1508 | endsect = jstart + jsize -1; | |
1509 | if ((jstart <= istart) && | |
1510 | (istart <= endsect)) { | |
1511 | if (!overlap) { | |
1512 | (void) fprintf(stderr, | |
1513 | "label error: EFI Labels do not " | |
1514 | "support overlapping partitions\n"); | |
1515 | } | |
1516 | (void) fprintf(stderr, | |
1517 | "Partition %d overlaps partition " | |
1518 | "%d.\n", i, j); | |
1519 | overlap = 1; | |
1520 | } | |
1521 | } | |
1522 | } | |
1523 | } | |
1524 | /* make sure there is a reserved partition */ | |
1525 | if (resv_part == -1) { | |
1526 | (void) fprintf(stderr, | |
1527 | "no reserved partition found\n"); | |
1528 | } | |
1529 | } | |
1530 | ||
1531 | /* | |
1532 | * We need to get information necessary to construct a *new* efi | |
1533 | * label type | |
1534 | */ | |
1535 | int | |
1536 | efi_auto_sense(int fd, struct dk_gpt **vtoc) | |
1537 | { | |
1538 | ||
1539 | int i; | |
1540 | ||
1541 | /* | |
1542 | * Now build the default partition table | |
1543 | */ | |
1544 | if (efi_alloc_and_init(fd, EFI_NUMPAR, vtoc) != 0) { | |
1545 | if (efi_debug) { | |
1546 | (void) fprintf(stderr, "efi_alloc_and_init failed.\n"); | |
1547 | } | |
1548 | return (-1); | |
1549 | } | |
1550 | ||
d603ed6c | 1551 | for (i = 0; i < MIN((*vtoc)->efi_nparts, V_NUMPAR); i++) { |
5c363129 BB |
1552 | (*vtoc)->efi_parts[i].p_tag = default_vtoc_map[i].p_tag; |
1553 | (*vtoc)->efi_parts[i].p_flag = default_vtoc_map[i].p_flag; | |
1554 | (*vtoc)->efi_parts[i].p_start = 0; | |
1555 | (*vtoc)->efi_parts[i].p_size = 0; | |
1556 | } | |
1557 | /* | |
1558 | * Make constants first | |
1559 | * and variable partitions later | |
1560 | */ | |
1561 | ||
1562 | /* root partition - s0 128 MB */ | |
1563 | (*vtoc)->efi_parts[0].p_start = 34; | |
1564 | (*vtoc)->efi_parts[0].p_size = 262144; | |
1565 | ||
1566 | /* partition - s1 128 MB */ | |
1567 | (*vtoc)->efi_parts[1].p_start = 262178; | |
1568 | (*vtoc)->efi_parts[1].p_size = 262144; | |
1569 | ||
1570 | /* partition -s2 is NOT the Backup disk */ | |
1571 | (*vtoc)->efi_parts[2].p_tag = V_UNASSIGNED; | |
1572 | ||
1573 | /* partition -s6 /usr partition - HOG */ | |
1574 | (*vtoc)->efi_parts[6].p_start = 524322; | |
1575 | (*vtoc)->efi_parts[6].p_size = (*vtoc)->efi_last_u_lba - 524322 | |
1576 | - (1024 * 16); | |
1577 | ||
1578 | /* efi reserved partition - s9 16K */ | |
1579 | (*vtoc)->efi_parts[8].p_start = (*vtoc)->efi_last_u_lba - (1024 * 16); | |
1580 | (*vtoc)->efi_parts[8].p_size = (1024 * 16); | |
1581 | (*vtoc)->efi_parts[8].p_tag = V_RESERVED; | |
1582 | return (0); | |
1583 | } |