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34dc7c2f 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 | /* | |
428870ff | 23 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
cae5b340 AX |
24 | * Copyright (c) 2013, 2015 by Delphix. All rights reserved. |
25 | * Copyright (c) 2016 Intel Corporation. | |
26 | * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>. | |
34dc7c2f BB |
27 | */ |
28 | ||
34dc7c2f BB |
29 | /* |
30 | * Functions to convert between a list of vdevs and an nvlist representing the | |
31 | * configuration. Each entry in the list can be one of: | |
32 | * | |
33 | * Device vdevs | |
34 | * disk=(path=..., devid=...) | |
35 | * file=(path=...) | |
36 | * | |
37 | * Group vdevs | |
38 | * raidz[1|2]=(...) | |
39 | * mirror=(...) | |
40 | * | |
41 | * Hot spares | |
42 | * | |
43 | * While the underlying implementation supports it, group vdevs cannot contain | |
44 | * other group vdevs. All userland verification of devices is contained within | |
45 | * this file. If successful, the nvlist returned can be passed directly to the | |
46 | * kernel; we've done as much verification as possible in userland. | |
47 | * | |
48 | * Hot spares are a special case, and passed down as an array of disk vdevs, at | |
49 | * the same level as the root of the vdev tree. | |
50 | * | |
51 | * The only function exported by this file is 'make_root_vdev'. The | |
52 | * function performs several passes: | |
53 | * | |
54 | * 1. Construct the vdev specification. Performs syntax validation and | |
55 | * makes sure each device is valid. | |
d603ed6c | 56 | * 2. Check for devices in use. Using libblkid to make sure that no |
34dc7c2f BB |
57 | * devices are also in use. Some can be overridden using the 'force' |
58 | * flag, others cannot. | |
59 | * 3. Check for replication errors if the 'force' flag is not specified. | |
60 | * validates that the replication level is consistent across the | |
61 | * entire pool. | |
62 | * 4. Call libzfs to label any whole disks with an EFI label. | |
63 | */ | |
64 | ||
65 | #include <assert.h> | |
d603ed6c | 66 | #include <ctype.h> |
34dc7c2f BB |
67 | #include <devid.h> |
68 | #include <errno.h> | |
69 | #include <fcntl.h> | |
34dc7c2f BB |
70 | #include <libintl.h> |
71 | #include <libnvpair.h> | |
45d1cae3 | 72 | #include <limits.h> |
cae5b340 | 73 | #include <sys/spa.h> |
c06d4368 AX |
74 | #include <scsi/scsi.h> |
75 | #include <scsi/sg.h> | |
34dc7c2f BB |
76 | #include <stdio.h> |
77 | #include <string.h> | |
78 | #include <unistd.h> | |
79 | #include <sys/efi_partition.h> | |
80 | #include <sys/stat.h> | |
81 | #include <sys/vtoc.h> | |
82 | #include <sys/mntent.h> | |
d603ed6c | 83 | #include <uuid/uuid.h> |
d603ed6c | 84 | #include <blkid/blkid.h> |
34dc7c2f | 85 | #include "zpool_util.h" |
c06d4368 | 86 | #include <sys/zfs_context.h> |
34dc7c2f | 87 | |
34dc7c2f BB |
88 | /* |
89 | * For any given vdev specification, we can have multiple errors. The | |
90 | * vdev_error() function keeps track of whether we have seen an error yet, and | |
91 | * prints out a header if its the first error we've seen. | |
92 | */ | |
93 | boolean_t error_seen; | |
94 | boolean_t is_force; | |
95 | ||
c06d4368 AX |
96 | typedef struct vdev_disk_db_entry |
97 | { | |
98 | char id[24]; | |
99 | int sector_size; | |
100 | } vdev_disk_db_entry_t; | |
101 | ||
102 | /* | |
103 | * Database of block devices that lie about physical sector sizes. The | |
104 | * identification string must be precisely 24 characters to avoid false | |
105 | * negatives | |
106 | */ | |
107 | static vdev_disk_db_entry_t vdev_disk_database[] = { | |
a08ee875 LG |
108 | {"ATA ADATA SSD S396 3", 8192}, |
109 | {"ATA APPLE SSD SM128E", 8192}, | |
110 | {"ATA APPLE SSD SM256E", 8192}, | |
111 | {"ATA APPLE SSD SM512E", 8192}, | |
112 | {"ATA APPLE SSD SM768E", 8192}, | |
113 | {"ATA C400-MTFDDAC064M", 8192}, | |
114 | {"ATA C400-MTFDDAC128M", 8192}, | |
115 | {"ATA C400-MTFDDAC256M", 8192}, | |
116 | {"ATA C400-MTFDDAC512M", 8192}, | |
c06d4368 | 117 | {"ATA Corsair Force 3 ", 8192}, |
a08ee875 | 118 | {"ATA Corsair Force GS", 8192}, |
c06d4368 | 119 | {"ATA INTEL SSDSA2CT04", 8192}, |
a08ee875 LG |
120 | {"ATA INTEL SSDSA2BZ10", 8192}, |
121 | {"ATA INTEL SSDSA2BZ20", 8192}, | |
122 | {"ATA INTEL SSDSA2BZ30", 8192}, | |
123 | {"ATA INTEL SSDSA2CW04", 8192}, | |
124 | {"ATA INTEL SSDSA2CW08", 8192}, | |
125 | {"ATA INTEL SSDSA2CW12", 8192}, | |
c06d4368 | 126 | {"ATA INTEL SSDSA2CW16", 8192}, |
a08ee875 LG |
127 | {"ATA INTEL SSDSA2CW30", 8192}, |
128 | {"ATA INTEL SSDSA2CW60", 8192}, | |
a08ee875 LG |
129 | {"ATA INTEL SSDSC2CT06", 8192}, |
130 | {"ATA INTEL SSDSC2CT12", 8192}, | |
c06d4368 | 131 | {"ATA INTEL SSDSC2CT18", 8192}, |
a08ee875 LG |
132 | {"ATA INTEL SSDSC2CT24", 8192}, |
133 | {"ATA INTEL SSDSC2CW06", 8192}, | |
c06d4368 | 134 | {"ATA INTEL SSDSC2CW12", 8192}, |
a08ee875 LG |
135 | {"ATA INTEL SSDSC2CW18", 8192}, |
136 | {"ATA INTEL SSDSC2CW24", 8192}, | |
137 | {"ATA INTEL SSDSC2CW48", 8192}, | |
c06d4368 | 138 | {"ATA KINGSTON SH100S3", 8192}, |
a08ee875 | 139 | {"ATA KINGSTON SH103S3", 8192}, |
c06d4368 AX |
140 | {"ATA M4-CT064M4SSD2 ", 8192}, |
141 | {"ATA M4-CT128M4SSD2 ", 8192}, | |
142 | {"ATA M4-CT256M4SSD2 ", 8192}, | |
143 | {"ATA M4-CT512M4SSD2 ", 8192}, | |
144 | {"ATA OCZ-AGILITY2 ", 8192}, | |
a08ee875 | 145 | {"ATA OCZ-AGILITY3 ", 8192}, |
c06d4368 AX |
146 | {"ATA OCZ-VERTEX2 3.5 ", 8192}, |
147 | {"ATA OCZ-VERTEX3 ", 8192}, | |
148 | {"ATA OCZ-VERTEX3 LT ", 8192}, | |
149 | {"ATA OCZ-VERTEX3 MI ", 8192}, | |
a08ee875 LG |
150 | {"ATA OCZ-VERTEX4 ", 8192}, |
151 | {"ATA SAMSUNG MZ7WD120", 8192}, | |
152 | {"ATA SAMSUNG MZ7WD240", 8192}, | |
153 | {"ATA SAMSUNG MZ7WD480", 8192}, | |
154 | {"ATA SAMSUNG MZ7WD960", 8192}, | |
c06d4368 AX |
155 | {"ATA SAMSUNG SSD 830 ", 8192}, |
156 | {"ATA Samsung SSD 840 ", 8192}, | |
a08ee875 LG |
157 | {"ATA SanDisk SSD U100", 8192}, |
158 | {"ATA TOSHIBA THNSNH06", 8192}, | |
159 | {"ATA TOSHIBA THNSNH12", 8192}, | |
160 | {"ATA TOSHIBA THNSNH25", 8192}, | |
161 | {"ATA TOSHIBA THNSNH51", 8192}, | |
162 | {"ATA APPLE SSD TS064C", 4096}, | |
163 | {"ATA APPLE SSD TS128C", 4096}, | |
164 | {"ATA APPLE SSD TS256C", 4096}, | |
165 | {"ATA APPLE SSD TS512C", 4096}, | |
c06d4368 AX |
166 | {"ATA INTEL SSDSA2M040", 4096}, |
167 | {"ATA INTEL SSDSA2M080", 4096}, | |
168 | {"ATA INTEL SSDSA2M160", 4096}, | |
a08ee875 LG |
169 | {"ATA INTEL SSDSC2MH12", 4096}, |
170 | {"ATA INTEL SSDSC2MH25", 4096}, | |
171 | {"ATA OCZ CORE_SSD ", 4096}, | |
172 | {"ATA OCZ-VERTEX ", 4096}, | |
173 | {"ATA SAMSUNG MCCOE32G", 4096}, | |
174 | {"ATA SAMSUNG MCCOE64G", 4096}, | |
175 | {"ATA SAMSUNG SSD PM80", 4096}, | |
ea04106b AX |
176 | /* Flash drives optimized for 4KB IOs on larger pages */ |
177 | {"ATA INTEL SSDSC2BA10", 4096}, | |
178 | {"ATA INTEL SSDSC2BA20", 4096}, | |
179 | {"ATA INTEL SSDSC2BA40", 4096}, | |
180 | {"ATA INTEL SSDSC2BA80", 4096}, | |
181 | {"ATA INTEL SSDSC2BB08", 4096}, | |
182 | {"ATA INTEL SSDSC2BB12", 4096}, | |
183 | {"ATA INTEL SSDSC2BB16", 4096}, | |
184 | {"ATA INTEL SSDSC2BB24", 4096}, | |
185 | {"ATA INTEL SSDSC2BB30", 4096}, | |
186 | {"ATA INTEL SSDSC2BB40", 4096}, | |
187 | {"ATA INTEL SSDSC2BB48", 4096}, | |
188 | {"ATA INTEL SSDSC2BB60", 4096}, | |
189 | {"ATA INTEL SSDSC2BB80", 4096}, | |
190 | {"ATA INTEL SSDSC2BW24", 4096}, | |
191 | {"ATA INTEL SSDSC2BP24", 4096}, | |
192 | {"ATA INTEL SSDSC2BP48", 4096}, | |
193 | {"NA SmrtStorSDLKAE9W", 4096}, | |
a08ee875 | 194 | /* Imported from Open Solaris */ |
c06d4368 AX |
195 | {"ATA MARVELL SD88SA02", 4096}, |
196 | /* Advanced format Hard drives */ | |
197 | {"ATA Hitachi HDS5C303", 4096}, | |
198 | {"ATA SAMSUNG HD204UI ", 4096}, | |
199 | {"ATA ST2000DL004 HD20", 4096}, | |
200 | {"ATA WDC WD10EARS-00M", 4096}, | |
201 | {"ATA WDC WD10EARS-00S", 4096}, | |
202 | {"ATA WDC WD10EARS-00Z", 4096}, | |
203 | {"ATA WDC WD15EARS-00M", 4096}, | |
204 | {"ATA WDC WD15EARS-00S", 4096}, | |
205 | {"ATA WDC WD15EARS-00Z", 4096}, | |
206 | {"ATA WDC WD20EARS-00M", 4096}, | |
207 | {"ATA WDC WD20EARS-00S", 4096}, | |
208 | {"ATA WDC WD20EARS-00Z", 4096}, | |
ea04106b AX |
209 | {"ATA WDC WD1600BEVT-0", 4096}, |
210 | {"ATA WDC WD2500BEVT-0", 4096}, | |
211 | {"ATA WDC WD3200BEVT-0", 4096}, | |
212 | {"ATA WDC WD5000BEVT-0", 4096}, | |
c06d4368 AX |
213 | /* Virtual disks: Assume zvols with default volblocksize */ |
214 | #if 0 | |
215 | {"ATA QEMU HARDDISK ", 8192}, | |
216 | {"IET VIRTUAL-DISK ", 8192}, | |
217 | {"OI COMSTAR ", 8192}, | |
a08ee875 LG |
218 | {"SUN COMSTAR ", 8192}, |
219 | {"NETAPP LUN ", 8192}, | |
c06d4368 AX |
220 | #endif |
221 | }; | |
222 | ||
223 | static const int vdev_disk_database_size = | |
224 | sizeof (vdev_disk_database) / sizeof (vdev_disk_database[0]); | |
225 | ||
226 | #define INQ_REPLY_LEN 96 | |
227 | #define INQ_CMD_LEN 6 | |
228 | ||
229 | static boolean_t | |
230 | check_sector_size_database(char *path, int *sector_size) | |
231 | { | |
232 | unsigned char inq_buff[INQ_REPLY_LEN]; | |
233 | unsigned char sense_buffer[32]; | |
234 | unsigned char inq_cmd_blk[INQ_CMD_LEN] = | |
235 | {INQUIRY, 0, 0, 0, INQ_REPLY_LEN, 0}; | |
236 | sg_io_hdr_t io_hdr; | |
237 | int error; | |
238 | int fd; | |
239 | int i; | |
240 | ||
241 | /* Prepare INQUIRY command */ | |
a08ee875 | 242 | memset(&io_hdr, 0, sizeof (sg_io_hdr_t)); |
c06d4368 | 243 | io_hdr.interface_id = 'S'; |
a08ee875 LG |
244 | io_hdr.cmd_len = sizeof (inq_cmd_blk); |
245 | io_hdr.mx_sb_len = sizeof (sense_buffer); | |
c06d4368 AX |
246 | io_hdr.dxfer_direction = SG_DXFER_FROM_DEV; |
247 | io_hdr.dxfer_len = INQ_REPLY_LEN; | |
248 | io_hdr.dxferp = inq_buff; | |
249 | io_hdr.cmdp = inq_cmd_blk; | |
250 | io_hdr.sbp = sense_buffer; | |
a08ee875 | 251 | io_hdr.timeout = 10; /* 10 milliseconds is ample time */ |
c06d4368 AX |
252 | |
253 | if ((fd = open(path, O_RDONLY|O_DIRECT)) < 0) | |
254 | return (B_FALSE); | |
255 | ||
256 | error = ioctl(fd, SG_IO, (unsigned long) &io_hdr); | |
257 | ||
258 | (void) close(fd); | |
259 | ||
260 | if (error < 0) | |
261 | return (B_FALSE); | |
262 | ||
263 | if ((io_hdr.info & SG_INFO_OK_MASK) != SG_INFO_OK) | |
264 | return (B_FALSE); | |
265 | ||
266 | for (i = 0; i < vdev_disk_database_size; i++) { | |
267 | if (memcmp(inq_buff + 8, vdev_disk_database[i].id, 24)) | |
268 | continue; | |
269 | ||
270 | *sector_size = vdev_disk_database[i].sector_size; | |
271 | return (B_TRUE); | |
272 | } | |
273 | ||
274 | return (B_FALSE); | |
275 | } | |
276 | ||
34dc7c2f BB |
277 | /*PRINTFLIKE1*/ |
278 | static void | |
279 | vdev_error(const char *fmt, ...) | |
280 | { | |
281 | va_list ap; | |
282 | ||
283 | if (!error_seen) { | |
284 | (void) fprintf(stderr, gettext("invalid vdev specification\n")); | |
285 | if (!is_force) | |
286 | (void) fprintf(stderr, gettext("use '-f' to override " | |
287 | "the following errors:\n")); | |
288 | else | |
289 | (void) fprintf(stderr, gettext("the following errors " | |
290 | "must be manually repaired:\n")); | |
291 | error_seen = B_TRUE; | |
292 | } | |
293 | ||
294 | va_start(ap, fmt); | |
295 | (void) vfprintf(stderr, fmt, ap); | |
296 | va_end(ap); | |
297 | } | |
298 | ||
34dc7c2f BB |
299 | /* |
300 | * Check that a file is valid. All we can do in this case is check that it's | |
301 | * not in use by another pool, and not in use by swap. | |
302 | */ | |
303 | static int | |
304 | check_file(const char *file, boolean_t force, boolean_t isspare) | |
305 | { | |
306 | char *name; | |
307 | int fd; | |
308 | int ret = 0; | |
34dc7c2f BB |
309 | pool_state_t state; |
310 | boolean_t inuse; | |
311 | ||
34dc7c2f BB |
312 | if ((fd = open(file, O_RDONLY)) < 0) |
313 | return (0); | |
314 | ||
315 | if (zpool_in_use(g_zfs, fd, &state, &name, &inuse) == 0 && inuse) { | |
316 | const char *desc; | |
317 | ||
318 | switch (state) { | |
319 | case POOL_STATE_ACTIVE: | |
320 | desc = gettext("active"); | |
321 | break; | |
322 | ||
323 | case POOL_STATE_EXPORTED: | |
324 | desc = gettext("exported"); | |
325 | break; | |
326 | ||
327 | case POOL_STATE_POTENTIALLY_ACTIVE: | |
328 | desc = gettext("potentially active"); | |
329 | break; | |
330 | ||
331 | default: | |
332 | desc = gettext("unknown"); | |
333 | break; | |
334 | } | |
335 | ||
336 | /* | |
337 | * Allow hot spares to be shared between pools. | |
338 | */ | |
cae5b340 AX |
339 | if (state == POOL_STATE_SPARE && isspare) { |
340 | free(name); | |
341 | (void) close(fd); | |
34dc7c2f | 342 | return (0); |
cae5b340 | 343 | } |
34dc7c2f BB |
344 | |
345 | if (state == POOL_STATE_ACTIVE || | |
346 | state == POOL_STATE_SPARE || !force) { | |
347 | switch (state) { | |
348 | case POOL_STATE_SPARE: | |
349 | vdev_error(gettext("%s is reserved as a hot " | |
350 | "spare for pool %s\n"), file, name); | |
351 | break; | |
352 | default: | |
353 | vdev_error(gettext("%s is part of %s pool " | |
354 | "'%s'\n"), file, desc, name); | |
355 | break; | |
356 | } | |
357 | ret = -1; | |
358 | } | |
359 | ||
360 | free(name); | |
361 | } | |
362 | ||
363 | (void) close(fd); | |
364 | return (ret); | |
365 | } | |
366 | ||
d603ed6c BB |
367 | static int |
368 | check_slice(const char *path, blkid_cache cache, int force, boolean_t isspare) | |
369 | { | |
d603ed6c | 370 | int err; |
d603ed6c | 371 | char *value; |
d603ed6c | 372 | |
d603ed6c BB |
373 | /* No valid type detected device is safe to use */ |
374 | value = blkid_get_tag_value(cache, "TYPE", path); | |
375 | if (value == NULL) | |
376 | return (0); | |
377 | ||
378 | /* | |
379 | * If libblkid detects a ZFS device, we check the device | |
380 | * using check_file() to see if it's safe. The one safe | |
381 | * case is a spare device shared between multiple pools. | |
382 | */ | |
ea04106b | 383 | if (strcmp(value, "zfs_member") == 0) { |
d603ed6c BB |
384 | err = check_file(path, force, isspare); |
385 | } else { | |
386 | if (force) { | |
387 | err = 0; | |
388 | } else { | |
389 | err = -1; | |
390 | vdev_error(gettext("%s contains a filesystem of " | |
a08ee875 | 391 | "type '%s'\n"), path, value); |
d603ed6c BB |
392 | } |
393 | } | |
394 | ||
395 | free(value); | |
d603ed6c BB |
396 | |
397 | return (err); | |
398 | } | |
399 | ||
400 | /* | |
cae5b340 AX |
401 | * Validate that a disk including all partitions are safe to use. |
402 | * | |
403 | * For EFI labeled disks this can done relatively easily with the libefi | |
404 | * library. The partition numbers are extracted from the label and used | |
405 | * to generate the expected /dev/ paths. Each partition can then be | |
406 | * checked for conflicts. | |
407 | * | |
408 | * For non-EFI labeled disks (MBR/EBR/etc) the same process is possible | |
409 | * but due to the lack of a readily available libraries this scanning is | |
410 | * not implemented. Instead only the device path as given is checked. | |
d603ed6c BB |
411 | */ |
412 | static int | |
413 | check_disk(const char *path, blkid_cache cache, int force, | |
a08ee875 | 414 | boolean_t isspare, boolean_t iswholedisk) |
d603ed6c BB |
415 | { |
416 | struct dk_gpt *vtoc; | |
417 | char slice_path[MAXPATHLEN]; | |
418 | int err = 0; | |
419 | int fd, i; | |
420 | ||
d603ed6c | 421 | if (!iswholedisk) |
a08ee875 | 422 | return (check_slice(path, cache, force, isspare)); |
d603ed6c | 423 | |
cae5b340 AX |
424 | if ((fd = open(path, O_RDONLY|O_DIRECT|O_EXCL)) < 0) { |
425 | char *value = blkid_get_tag_value(cache, "TYPE", path); | |
426 | (void) fprintf(stderr, gettext("%s is in use and contains " | |
427 | "a %s filesystem.\n"), path, value ? value : "unknown"); | |
a08ee875 | 428 | return (-1); |
d603ed6c BB |
429 | } |
430 | ||
cae5b340 AX |
431 | /* |
432 | * Expected to fail for non-EFI labled disks. Just check the device | |
433 | * as given and do not attempt to detect and scan partitions. | |
434 | */ | |
435 | err = efi_alloc_and_read(fd, &vtoc); | |
436 | if (err) { | |
d603ed6c | 437 | (void) close(fd); |
cae5b340 | 438 | return (check_slice(path, cache, force, isspare)); |
d603ed6c BB |
439 | } |
440 | ||
441 | /* | |
442 | * The primary efi partition label is damaged however the secondary | |
443 | * label at the end of the device is intact. Rather than use this | |
444 | * label we should play it safe and treat this as a non efi device. | |
445 | */ | |
446 | if (vtoc->efi_flags & EFI_GPT_PRIMARY_CORRUPT) { | |
447 | efi_free(vtoc); | |
448 | (void) close(fd); | |
449 | ||
450 | if (force) { | |
cae5b340 | 451 | /* Partitions will now be created using the backup */ |
a08ee875 | 452 | return (0); |
d603ed6c BB |
453 | } else { |
454 | vdev_error(gettext("%s contains a corrupt primary " | |
455 | "EFI label.\n"), path); | |
a08ee875 | 456 | return (-1); |
d603ed6c BB |
457 | } |
458 | } | |
459 | ||
460 | for (i = 0; i < vtoc->efi_nparts; i++) { | |
461 | ||
462 | if (vtoc->efi_parts[i].p_tag == V_UNASSIGNED || | |
463 | uuid_is_null((uchar_t *)&vtoc->efi_parts[i].p_guid)) | |
464 | continue; | |
465 | ||
466 | if (strncmp(path, UDISK_ROOT, strlen(UDISK_ROOT)) == 0) | |
467 | (void) snprintf(slice_path, sizeof (slice_path), | |
468 | "%s%s%d", path, "-part", i+1); | |
469 | else | |
470 | (void) snprintf(slice_path, sizeof (slice_path), | |
471 | "%s%s%d", path, isdigit(path[strlen(path)-1]) ? | |
472 | "p" : "", i+1); | |
473 | ||
474 | err = check_slice(slice_path, cache, force, isspare); | |
475 | if (err) | |
476 | break; | |
477 | } | |
478 | ||
479 | efi_free(vtoc); | |
480 | (void) close(fd); | |
481 | ||
8128bd89 | 482 | return (err); |
d603ed6c BB |
483 | } |
484 | ||
485 | static int | |
486 | check_device(const char *path, boolean_t force, | |
a08ee875 | 487 | boolean_t isspare, boolean_t iswholedisk) |
d603ed6c | 488 | { |
cae5b340 AX |
489 | blkid_cache cache; |
490 | int error; | |
d603ed6c | 491 | |
cae5b340 AX |
492 | error = blkid_get_cache(&cache, NULL); |
493 | if (error != 0) { | |
494 | (void) fprintf(stderr, gettext("unable to access the blkid " | |
495 | "cache.\n")); | |
496 | return (-1); | |
d603ed6c | 497 | } |
34dc7c2f | 498 | |
cae5b340 AX |
499 | error = check_disk(path, cache, force, isspare, iswholedisk); |
500 | blkid_put_cache(cache); | |
34dc7c2f | 501 | |
cae5b340 | 502 | return (error); |
34dc7c2f BB |
503 | } |
504 | ||
d603ed6c BB |
505 | /* |
506 | * This may be a shorthand device path or it could be total gibberish. | |
eac47204 BB |
507 | * Check to see if it is a known device available in zfs_vdev_paths. |
508 | * As part of this check, see if we've been given an entire disk | |
509 | * (minus the slice number). | |
d603ed6c BB |
510 | */ |
511 | static int | |
cae5b340 | 512 | is_shorthand_path(const char *arg, char *path, size_t path_size, |
a08ee875 | 513 | struct stat64 *statbuf, boolean_t *wholedisk) |
d603ed6c | 514 | { |
eac47204 BB |
515 | int error; |
516 | ||
cae5b340 | 517 | error = zfs_resolve_shortname(arg, path, path_size); |
eac47204 | 518 | if (error == 0) { |
cae5b340 | 519 | *wholedisk = zfs_dev_is_whole_disk(path); |
79e7242a | 520 | if (*wholedisk || (stat64(path, statbuf) == 0)) |
d603ed6c BB |
521 | return (0); |
522 | } | |
523 | ||
cae5b340 | 524 | strlcpy(path, arg, path_size); |
a08ee875 | 525 | memset(statbuf, 0, sizeof (*statbuf)); |
d603ed6c BB |
526 | *wholedisk = B_FALSE; |
527 | ||
eac47204 | 528 | return (error); |
d603ed6c BB |
529 | } |
530 | ||
8128bd89 BB |
531 | /* |
532 | * Determine if the given path is a hot spare within the given configuration. | |
533 | * If no configuration is given we rely solely on the label. | |
534 | */ | |
535 | static boolean_t | |
536 | is_spare(nvlist_t *config, const char *path) | |
537 | { | |
538 | int fd; | |
539 | pool_state_t state; | |
540 | char *name = NULL; | |
541 | nvlist_t *label; | |
542 | uint64_t guid, spareguid; | |
543 | nvlist_t *nvroot; | |
544 | nvlist_t **spares; | |
545 | uint_t i, nspares; | |
546 | boolean_t inuse; | |
547 | ||
548 | if ((fd = open(path, O_RDONLY)) < 0) | |
549 | return (B_FALSE); | |
550 | ||
551 | if (zpool_in_use(g_zfs, fd, &state, &name, &inuse) != 0 || | |
552 | !inuse || | |
553 | state != POOL_STATE_SPARE || | |
ea04106b | 554 | zpool_read_label(fd, &label, NULL) != 0) { |
8128bd89 BB |
555 | free(name); |
556 | (void) close(fd); | |
557 | return (B_FALSE); | |
558 | } | |
559 | free(name); | |
560 | (void) close(fd); | |
561 | ||
cae5b340 AX |
562 | if (config == NULL) { |
563 | nvlist_free(label); | |
8128bd89 | 564 | return (B_TRUE); |
cae5b340 | 565 | } |
8128bd89 BB |
566 | |
567 | verify(nvlist_lookup_uint64(label, ZPOOL_CONFIG_GUID, &guid) == 0); | |
568 | nvlist_free(label); | |
569 | ||
570 | verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, | |
571 | &nvroot) == 0); | |
572 | if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
573 | &spares, &nspares) == 0) { | |
574 | for (i = 0; i < nspares; i++) { | |
575 | verify(nvlist_lookup_uint64(spares[i], | |
576 | ZPOOL_CONFIG_GUID, &spareguid) == 0); | |
577 | if (spareguid == guid) | |
578 | return (B_TRUE); | |
579 | } | |
580 | } | |
581 | ||
582 | return (B_FALSE); | |
583 | } | |
584 | ||
34dc7c2f BB |
585 | /* |
586 | * Create a leaf vdev. Determine if this is a file or a device. If it's a | |
587 | * device, fill in the device id to make a complete nvlist. Valid forms for a | |
588 | * leaf vdev are: | |
589 | * | |
eac47204 BB |
590 | * /dev/xxx Complete disk path |
591 | * /xxx Full path to file | |
592 | * xxx Shorthand for <zfs_vdev_paths>/xxx | |
34dc7c2f BB |
593 | */ |
594 | static nvlist_t * | |
df30f566 | 595 | make_leaf_vdev(nvlist_t *props, const char *arg, uint64_t is_log) |
34dc7c2f BB |
596 | { |
597 | char path[MAXPATHLEN]; | |
598 | struct stat64 statbuf; | |
599 | nvlist_t *vdev = NULL; | |
600 | char *type = NULL; | |
601 | boolean_t wholedisk = B_FALSE; | |
c06d4368 | 602 | uint64_t ashift = 0; |
d603ed6c | 603 | int err; |
34dc7c2f BB |
604 | |
605 | /* | |
606 | * Determine what type of vdev this is, and put the full path into | |
607 | * 'path'. We detect whether this is a device of file afterwards by | |
608 | * checking the st_mode of the file. | |
609 | */ | |
610 | if (arg[0] == '/') { | |
611 | /* | |
612 | * Complete device or file path. Exact type is determined by | |
d603ed6c | 613 | * examining the file descriptor afterwards. Symbolic links |
cae5b340 | 614 | * are resolved to their real paths to determine whole disk |
d603ed6c BB |
615 | * and S_ISBLK/S_ISREG type checks. However, we are careful |
616 | * to store the given path as ZPOOL_CONFIG_PATH to ensure we | |
617 | * can leverage udev's persistent device labels. | |
34dc7c2f | 618 | */ |
d603ed6c | 619 | if (realpath(arg, path) == NULL) { |
34dc7c2f | 620 | (void) fprintf(stderr, |
d603ed6c | 621 | gettext("cannot resolve path '%s'\n"), arg); |
34dc7c2f BB |
622 | return (NULL); |
623 | } | |
624 | ||
cae5b340 | 625 | wholedisk = zfs_dev_is_whole_disk(path); |
34dc7c2f | 626 | if (!wholedisk && (stat64(path, &statbuf) != 0)) { |
d603ed6c BB |
627 | (void) fprintf(stderr, |
628 | gettext("cannot open '%s': %s\n"), | |
629 | path, strerror(errno)); | |
630 | return (NULL); | |
631 | } | |
632 | ||
cae5b340 AX |
633 | /* After whole disk check restore original passed path */ |
634 | strlcpy(path, arg, sizeof (path)); | |
d603ed6c | 635 | } else { |
cae5b340 AX |
636 | err = is_shorthand_path(arg, path, sizeof (path), |
637 | &statbuf, &wholedisk); | |
d603ed6c | 638 | if (err != 0) { |
34dc7c2f BB |
639 | /* |
640 | * If we got ENOENT, then the user gave us | |
641 | * gibberish, so try to direct them with a | |
642 | * reasonable error message. Otherwise, | |
643 | * regurgitate strerror() since it's the best we | |
644 | * can do. | |
645 | */ | |
d603ed6c | 646 | if (err == ENOENT) { |
34dc7c2f BB |
647 | (void) fprintf(stderr, |
648 | gettext("cannot open '%s': no such " | |
649 | "device in %s\n"), arg, DISK_ROOT); | |
650 | (void) fprintf(stderr, | |
651 | gettext("must be a full path or " | |
652 | "shorthand device name\n")); | |
653 | return (NULL); | |
654 | } else { | |
655 | (void) fprintf(stderr, | |
656 | gettext("cannot open '%s': %s\n"), | |
657 | path, strerror(errno)); | |
658 | return (NULL); | |
659 | } | |
660 | } | |
661 | } | |
662 | ||
663 | /* | |
664 | * Determine whether this is a device or a file. | |
665 | */ | |
666 | if (wholedisk || S_ISBLK(statbuf.st_mode)) { | |
667 | type = VDEV_TYPE_DISK; | |
668 | } else if (S_ISREG(statbuf.st_mode)) { | |
669 | type = VDEV_TYPE_FILE; | |
670 | } else { | |
671 | (void) fprintf(stderr, gettext("cannot use '%s': must be a " | |
672 | "block device or regular file\n"), path); | |
673 | return (NULL); | |
674 | } | |
675 | ||
676 | /* | |
677 | * Finally, we have the complete device or file, and we know that it is | |
678 | * acceptable to use. Construct the nvlist to describe this vdev. All | |
679 | * vdevs have a 'path' element, and devices also have a 'devid' element. | |
680 | */ | |
681 | verify(nvlist_alloc(&vdev, NV_UNIQUE_NAME, 0) == 0); | |
682 | verify(nvlist_add_string(vdev, ZPOOL_CONFIG_PATH, path) == 0); | |
683 | verify(nvlist_add_string(vdev, ZPOOL_CONFIG_TYPE, type) == 0); | |
684 | verify(nvlist_add_uint64(vdev, ZPOOL_CONFIG_IS_LOG, is_log) == 0); | |
685 | if (strcmp(type, VDEV_TYPE_DISK) == 0) | |
686 | verify(nvlist_add_uint64(vdev, ZPOOL_CONFIG_WHOLE_DISK, | |
687 | (uint64_t)wholedisk) == 0); | |
688 | ||
c06d4368 AX |
689 | /* |
690 | * Override defaults if custom properties are provided. | |
691 | */ | |
df30f566 | 692 | if (props != NULL) { |
df30f566 CK |
693 | char *value = NULL; |
694 | ||
695 | if (nvlist_lookup_string(props, | |
cae5b340 AX |
696 | zpool_prop_to_name(ZPOOL_PROP_ASHIFT), &value) == 0) { |
697 | if (zfs_nicestrtonum(NULL, value, &ashift) != 0) { | |
698 | (void) fprintf(stderr, | |
699 | gettext("ashift must be a number.\n")); | |
700 | return (NULL); | |
701 | } | |
702 | if (ashift != 0 && | |
703 | (ashift < ASHIFT_MIN || ashift > ASHIFT_MAX)) { | |
704 | (void) fprintf(stderr, | |
705 | gettext("invalid 'ashift=%" PRIu64 "' " | |
706 | "property: only values between %" PRId32 " " | |
707 | "and %" PRId32 " are allowed.\n"), | |
708 | ashift, ASHIFT_MIN, ASHIFT_MAX); | |
709 | return (NULL); | |
710 | } | |
711 | } | |
c06d4368 | 712 | } |
df30f566 | 713 | |
c06d4368 AX |
714 | /* |
715 | * If the device is known to incorrectly report its physical sector | |
716 | * size explicitly provide the known correct value. | |
717 | */ | |
718 | if (ashift == 0) { | |
719 | int sector_size; | |
720 | ||
721 | if (check_sector_size_database(path, §or_size) == B_TRUE) | |
ea04106b | 722 | ashift = highbit64(sector_size) - 1; |
df30f566 CK |
723 | } |
724 | ||
c06d4368 | 725 | if (ashift > 0) |
cae5b340 | 726 | (void) nvlist_add_uint64(vdev, ZPOOL_CONFIG_ASHIFT, ashift); |
c06d4368 | 727 | |
34dc7c2f BB |
728 | return (vdev); |
729 | } | |
730 | ||
731 | /* | |
732 | * Go through and verify the replication level of the pool is consistent. | |
733 | * Performs the following checks: | |
734 | * | |
735 | * For the new spec, verifies that devices in mirrors and raidz are the | |
736 | * same size. | |
737 | * | |
738 | * If the current configuration already has inconsistent replication | |
739 | * levels, ignore any other potential problems in the new spec. | |
740 | * | |
741 | * Otherwise, make sure that the current spec (if there is one) and the new | |
742 | * spec have consistent replication levels. | |
743 | */ | |
744 | typedef struct replication_level { | |
745 | char *zprl_type; | |
746 | uint64_t zprl_children; | |
747 | uint64_t zprl_parity; | |
748 | } replication_level_t; | |
749 | ||
750 | #define ZPOOL_FUZZ (16 * 1024 * 1024) | |
751 | ||
cae5b340 AX |
752 | static boolean_t |
753 | is_raidz_mirror(replication_level_t *a, replication_level_t *b, | |
754 | replication_level_t **raidz, replication_level_t **mirror) | |
755 | { | |
756 | if (strcmp(a->zprl_type, "raidz") == 0 && | |
757 | strcmp(b->zprl_type, "mirror") == 0) { | |
758 | *raidz = a; | |
759 | *mirror = b; | |
760 | return (B_TRUE); | |
761 | } | |
762 | return (B_FALSE); | |
763 | } | |
764 | ||
34dc7c2f BB |
765 | /* |
766 | * Given a list of toplevel vdevs, return the current replication level. If | |
767 | * the config is inconsistent, then NULL is returned. If 'fatal' is set, then | |
768 | * an error message will be displayed for each self-inconsistent vdev. | |
769 | */ | |
770 | static replication_level_t * | |
771 | get_replication(nvlist_t *nvroot, boolean_t fatal) | |
772 | { | |
773 | nvlist_t **top; | |
774 | uint_t t, toplevels; | |
775 | nvlist_t **child; | |
776 | uint_t c, children; | |
777 | nvlist_t *nv; | |
778 | char *type; | |
cae5b340 AX |
779 | replication_level_t lastrep = {0}; |
780 | replication_level_t rep; | |
781 | replication_level_t *ret; | |
782 | replication_level_t *raidz, *mirror; | |
34dc7c2f BB |
783 | boolean_t dontreport; |
784 | ||
785 | ret = safe_malloc(sizeof (replication_level_t)); | |
786 | ||
787 | verify(nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN, | |
788 | &top, &toplevels) == 0); | |
789 | ||
34dc7c2f BB |
790 | for (t = 0; t < toplevels; t++) { |
791 | uint64_t is_log = B_FALSE; | |
792 | ||
793 | nv = top[t]; | |
794 | ||
795 | /* | |
796 | * For separate logs we ignore the top level vdev replication | |
797 | * constraints. | |
798 | */ | |
799 | (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_LOG, &is_log); | |
800 | if (is_log) | |
801 | continue; | |
802 | ||
41d74433 AX |
803 | /* Ignore holes introduced by removing aux devices */ |
804 | verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) == 0); | |
805 | if (strcmp(type, VDEV_TYPE_HOLE) == 0) | |
806 | continue; | |
807 | ||
34dc7c2f BB |
808 | if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, |
809 | &child, &children) != 0) { | |
810 | /* | |
811 | * This is a 'file' or 'disk' vdev. | |
812 | */ | |
813 | rep.zprl_type = type; | |
814 | rep.zprl_children = 1; | |
815 | rep.zprl_parity = 0; | |
816 | } else { | |
817 | uint64_t vdev_size; | |
818 | ||
819 | /* | |
820 | * This is a mirror or RAID-Z vdev. Go through and make | |
821 | * sure the contents are all the same (files vs. disks), | |
822 | * keeping track of the number of elements in the | |
823 | * process. | |
824 | * | |
825 | * We also check that the size of each vdev (if it can | |
826 | * be determined) is the same. | |
827 | */ | |
828 | rep.zprl_type = type; | |
829 | rep.zprl_children = 0; | |
830 | ||
831 | if (strcmp(type, VDEV_TYPE_RAIDZ) == 0) { | |
832 | verify(nvlist_lookup_uint64(nv, | |
833 | ZPOOL_CONFIG_NPARITY, | |
834 | &rep.zprl_parity) == 0); | |
835 | assert(rep.zprl_parity != 0); | |
836 | } else { | |
837 | rep.zprl_parity = 0; | |
838 | } | |
839 | ||
840 | /* | |
841 | * The 'dontreport' variable indicates that we've | |
842 | * already reported an error for this spec, so don't | |
843 | * bother doing it again. | |
844 | */ | |
845 | type = NULL; | |
846 | dontreport = 0; | |
847 | vdev_size = -1ULL; | |
848 | for (c = 0; c < children; c++) { | |
849 | nvlist_t *cnv = child[c]; | |
850 | char *path; | |
851 | struct stat64 statbuf; | |
852 | uint64_t size = -1ULL; | |
853 | char *childtype; | |
854 | int fd, err; | |
855 | ||
856 | rep.zprl_children++; | |
857 | ||
858 | verify(nvlist_lookup_string(cnv, | |
859 | ZPOOL_CONFIG_TYPE, &childtype) == 0); | |
860 | ||
861 | /* | |
862 | * If this is a replacing or spare vdev, then | |
047218e2 AX |
863 | * get the real first child of the vdev: do this |
864 | * in a loop because replacing and spare vdevs | |
865 | * can be nested. | |
34dc7c2f | 866 | */ |
047218e2 | 867 | while (strcmp(childtype, |
34dc7c2f BB |
868 | VDEV_TYPE_REPLACING) == 0 || |
869 | strcmp(childtype, VDEV_TYPE_SPARE) == 0) { | |
870 | nvlist_t **rchild; | |
871 | uint_t rchildren; | |
872 | ||
873 | verify(nvlist_lookup_nvlist_array(cnv, | |
874 | ZPOOL_CONFIG_CHILDREN, &rchild, | |
875 | &rchildren) == 0); | |
876 | assert(rchildren == 2); | |
877 | cnv = rchild[0]; | |
878 | ||
879 | verify(nvlist_lookup_string(cnv, | |
880 | ZPOOL_CONFIG_TYPE, | |
881 | &childtype) == 0); | |
882 | } | |
883 | ||
884 | verify(nvlist_lookup_string(cnv, | |
885 | ZPOOL_CONFIG_PATH, &path) == 0); | |
886 | ||
887 | /* | |
888 | * If we have a raidz/mirror that combines disks | |
889 | * with files, report it as an error. | |
890 | */ | |
891 | if (!dontreport && type != NULL && | |
892 | strcmp(type, childtype) != 0) { | |
893 | if (ret != NULL) | |
894 | free(ret); | |
895 | ret = NULL; | |
896 | if (fatal) | |
897 | vdev_error(gettext( | |
898 | "mismatched replication " | |
899 | "level: %s contains both " | |
900 | "files and devices\n"), | |
901 | rep.zprl_type); | |
902 | else | |
903 | return (NULL); | |
904 | dontreport = B_TRUE; | |
905 | } | |
906 | ||
907 | /* | |
908 | * According to stat(2), the value of 'st_size' | |
909 | * is undefined for block devices and character | |
910 | * devices. But there is no effective way to | |
911 | * determine the real size in userland. | |
912 | * | |
913 | * Instead, we'll take advantage of an | |
914 | * implementation detail of spec_size(). If the | |
915 | * device is currently open, then we (should) | |
916 | * return a valid size. | |
917 | * | |
918 | * If we still don't get a valid size (indicated | |
919 | * by a size of 0 or MAXOFFSET_T), then ignore | |
920 | * this device altogether. | |
921 | */ | |
922 | if ((fd = open(path, O_RDONLY)) >= 0) { | |
cae5b340 | 923 | err = fstat64_blk(fd, &statbuf); |
34dc7c2f BB |
924 | (void) close(fd); |
925 | } else { | |
926 | err = stat64(path, &statbuf); | |
927 | } | |
928 | ||
929 | if (err != 0 || | |
930 | statbuf.st_size == 0 || | |
931 | statbuf.st_size == MAXOFFSET_T) | |
932 | continue; | |
933 | ||
934 | size = statbuf.st_size; | |
935 | ||
936 | /* | |
937 | * Also make sure that devices and | |
938 | * slices have a consistent size. If | |
939 | * they differ by a significant amount | |
940 | * (~16MB) then report an error. | |
941 | */ | |
942 | if (!dontreport && | |
943 | (vdev_size != -1ULL && | |
944 | (labs(size - vdev_size) > | |
945 | ZPOOL_FUZZ))) { | |
946 | if (ret != NULL) | |
947 | free(ret); | |
948 | ret = NULL; | |
949 | if (fatal) | |
950 | vdev_error(gettext( | |
951 | "%s contains devices of " | |
952 | "different sizes\n"), | |
953 | rep.zprl_type); | |
954 | else | |
955 | return (NULL); | |
956 | dontreport = B_TRUE; | |
957 | } | |
958 | ||
959 | type = childtype; | |
960 | vdev_size = size; | |
961 | } | |
962 | } | |
963 | ||
964 | /* | |
965 | * At this point, we have the replication of the last toplevel | |
966 | * vdev in 'rep'. Compare it to 'lastrep' to see if its | |
967 | * different. | |
968 | */ | |
969 | if (lastrep.zprl_type != NULL) { | |
cae5b340 AX |
970 | if (is_raidz_mirror(&lastrep, &rep, &raidz, &mirror) || |
971 | is_raidz_mirror(&rep, &lastrep, &raidz, &mirror)) { | |
972 | /* | |
973 | * Accepted raidz and mirror when they can | |
974 | * handle the same number of disk failures. | |
975 | */ | |
976 | if (raidz->zprl_parity != | |
977 | mirror->zprl_children - 1) { | |
978 | if (ret != NULL) | |
979 | free(ret); | |
980 | ret = NULL; | |
981 | if (fatal) | |
982 | vdev_error(gettext( | |
983 | "mismatched replication " | |
984 | "level: " | |
985 | "%s and %s vdevs with " | |
986 | "different redundancy, " | |
987 | "%llu vs. %llu (%llu-way) " | |
988 | "are present\n"), | |
989 | raidz->zprl_type, | |
990 | mirror->zprl_type, | |
991 | raidz->zprl_parity, | |
992 | mirror->zprl_children - 1, | |
993 | mirror->zprl_children); | |
994 | else | |
995 | return (NULL); | |
996 | } | |
997 | } else if (strcmp(lastrep.zprl_type, rep.zprl_type) != | |
998 | 0) { | |
34dc7c2f BB |
999 | if (ret != NULL) |
1000 | free(ret); | |
1001 | ret = NULL; | |
1002 | if (fatal) | |
1003 | vdev_error(gettext( | |
1004 | "mismatched replication level: " | |
1005 | "both %s and %s vdevs are " | |
1006 | "present\n"), | |
1007 | lastrep.zprl_type, rep.zprl_type); | |
1008 | else | |
1009 | return (NULL); | |
1010 | } else if (lastrep.zprl_parity != rep.zprl_parity) { | |
1011 | if (ret) | |
1012 | free(ret); | |
1013 | ret = NULL; | |
1014 | if (fatal) | |
1015 | vdev_error(gettext( | |
1016 | "mismatched replication level: " | |
1017 | "both %llu and %llu device parity " | |
1018 | "%s vdevs are present\n"), | |
1019 | lastrep.zprl_parity, | |
1020 | rep.zprl_parity, | |
1021 | rep.zprl_type); | |
1022 | else | |
1023 | return (NULL); | |
1024 | } else if (lastrep.zprl_children != rep.zprl_children) { | |
1025 | if (ret) | |
1026 | free(ret); | |
1027 | ret = NULL; | |
1028 | if (fatal) | |
1029 | vdev_error(gettext( | |
1030 | "mismatched replication level: " | |
1031 | "both %llu-way and %llu-way %s " | |
1032 | "vdevs are present\n"), | |
1033 | lastrep.zprl_children, | |
1034 | rep.zprl_children, | |
1035 | rep.zprl_type); | |
1036 | else | |
1037 | return (NULL); | |
1038 | } | |
1039 | } | |
1040 | lastrep = rep; | |
1041 | } | |
1042 | ||
1043 | if (ret != NULL) | |
1044 | *ret = rep; | |
1045 | ||
1046 | return (ret); | |
1047 | } | |
1048 | ||
1049 | /* | |
1050 | * Check the replication level of the vdev spec against the current pool. Calls | |
1051 | * get_replication() to make sure the new spec is self-consistent. If the pool | |
1052 | * has a consistent replication level, then we ignore any errors. Otherwise, | |
1053 | * report any difference between the two. | |
1054 | */ | |
1055 | static int | |
1056 | check_replication(nvlist_t *config, nvlist_t *newroot) | |
1057 | { | |
1058 | nvlist_t **child; | |
1059 | uint_t children; | |
1060 | replication_level_t *current = NULL, *new; | |
cae5b340 | 1061 | replication_level_t *raidz, *mirror; |
34dc7c2f BB |
1062 | int ret; |
1063 | ||
1064 | /* | |
1065 | * If we have a current pool configuration, check to see if it's | |
1066 | * self-consistent. If not, simply return success. | |
1067 | */ | |
1068 | if (config != NULL) { | |
1069 | nvlist_t *nvroot; | |
1070 | ||
1071 | verify(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, | |
1072 | &nvroot) == 0); | |
1073 | if ((current = get_replication(nvroot, B_FALSE)) == NULL) | |
1074 | return (0); | |
1075 | } | |
1076 | /* | |
1077 | * for spares there may be no children, and therefore no | |
1078 | * replication level to check | |
1079 | */ | |
1080 | if ((nvlist_lookup_nvlist_array(newroot, ZPOOL_CONFIG_CHILDREN, | |
1081 | &child, &children) != 0) || (children == 0)) { | |
1082 | free(current); | |
1083 | return (0); | |
1084 | } | |
1085 | ||
1086 | /* | |
1087 | * If all we have is logs then there's no replication level to check. | |
1088 | */ | |
1089 | if (num_logs(newroot) == children) { | |
1090 | free(current); | |
1091 | return (0); | |
1092 | } | |
1093 | ||
1094 | /* | |
1095 | * Get the replication level of the new vdev spec, reporting any | |
1096 | * inconsistencies found. | |
1097 | */ | |
1098 | if ((new = get_replication(newroot, B_TRUE)) == NULL) { | |
1099 | free(current); | |
1100 | return (-1); | |
1101 | } | |
1102 | ||
1103 | /* | |
1104 | * Check to see if the new vdev spec matches the replication level of | |
1105 | * the current pool. | |
1106 | */ | |
1107 | ret = 0; | |
1108 | if (current != NULL) { | |
cae5b340 AX |
1109 | if (is_raidz_mirror(current, new, &raidz, &mirror) || |
1110 | is_raidz_mirror(new, current, &raidz, &mirror)) { | |
1111 | if (raidz->zprl_parity != mirror->zprl_children - 1) { | |
1112 | vdev_error(gettext( | |
1113 | "mismatched replication level: pool and " | |
1114 | "new vdev with different redundancy, %s " | |
1115 | "and %s vdevs, %llu vs. %llu (%llu-way)\n"), | |
1116 | raidz->zprl_type, | |
1117 | mirror->zprl_type, | |
1118 | raidz->zprl_parity, | |
1119 | mirror->zprl_children - 1, | |
1120 | mirror->zprl_children); | |
1121 | ret = -1; | |
1122 | } | |
1123 | } else if (strcmp(current->zprl_type, new->zprl_type) != 0) { | |
34dc7c2f BB |
1124 | vdev_error(gettext( |
1125 | "mismatched replication level: pool uses %s " | |
1126 | "and new vdev is %s\n"), | |
1127 | current->zprl_type, new->zprl_type); | |
1128 | ret = -1; | |
1129 | } else if (current->zprl_parity != new->zprl_parity) { | |
1130 | vdev_error(gettext( | |
1131 | "mismatched replication level: pool uses %llu " | |
1132 | "device parity and new vdev uses %llu\n"), | |
1133 | current->zprl_parity, new->zprl_parity); | |
1134 | ret = -1; | |
1135 | } else if (current->zprl_children != new->zprl_children) { | |
1136 | vdev_error(gettext( | |
1137 | "mismatched replication level: pool uses %llu-way " | |
1138 | "%s and new vdev uses %llu-way %s\n"), | |
1139 | current->zprl_children, current->zprl_type, | |
1140 | new->zprl_children, new->zprl_type); | |
1141 | ret = -1; | |
1142 | } | |
1143 | } | |
1144 | ||
1145 | free(new); | |
1146 | if (current != NULL) | |
1147 | free(current); | |
1148 | ||
1149 | return (ret); | |
1150 | } | |
1151 | ||
d603ed6c BB |
1152 | static int |
1153 | zero_label(char *path) | |
1154 | { | |
1155 | const int size = 4096; | |
1156 | char buf[size]; | |
1157 | int err, fd; | |
1158 | ||
1159 | if ((fd = open(path, O_WRONLY|O_EXCL)) < 0) { | |
1160 | (void) fprintf(stderr, gettext("cannot open '%s': %s\n"), | |
1161 | path, strerror(errno)); | |
1162 | return (-1); | |
1163 | } | |
1164 | ||
1165 | memset(buf, 0, size); | |
1166 | err = write(fd, buf, size); | |
1167 | (void) fdatasync(fd); | |
1168 | (void) close(fd); | |
1169 | ||
1170 | if (err == -1) { | |
1171 | (void) fprintf(stderr, gettext("cannot zero first %d bytes " | |
1172 | "of '%s': %s\n"), size, path, strerror(errno)); | |
1173 | return (-1); | |
1174 | } | |
1175 | ||
1176 | if (err != size) { | |
1177 | (void) fprintf(stderr, gettext("could only zero %d/%d bytes " | |
1178 | "of '%s'\n"), err, size, path); | |
1179 | return (-1); | |
1180 | } | |
1181 | ||
a08ee875 | 1182 | return (0); |
d603ed6c BB |
1183 | } |
1184 | ||
34dc7c2f BB |
1185 | /* |
1186 | * Go through and find any whole disks in the vdev specification, labelling them | |
1187 | * as appropriate. When constructing the vdev spec, we were unable to open this | |
1188 | * device in order to provide a devid. Now that we have labelled the disk and | |
1189 | * know that slice 0 is valid, we can construct the devid now. | |
1190 | * | |
1191 | * If the disk was already labeled with an EFI label, we will have gotten the | |
1192 | * devid already (because we were able to open the whole disk). Otherwise, we | |
1193 | * need to get the devid after we label the disk. | |
1194 | */ | |
1195 | static int | |
1196 | make_disks(zpool_handle_t *zhp, nvlist_t *nv) | |
1197 | { | |
1198 | nvlist_t **child; | |
1199 | uint_t c, children; | |
8128bd89 | 1200 | char *type, *path; |
d877ac6b NB |
1201 | char devpath[MAXPATHLEN]; |
1202 | char udevpath[MAXPATHLEN]; | |
34dc7c2f | 1203 | uint64_t wholedisk; |
d877ac6b | 1204 | struct stat64 statbuf; |
8128bd89 BB |
1205 | int is_exclusive = 0; |
1206 | int fd; | |
34dc7c2f | 1207 | int ret; |
34dc7c2f BB |
1208 | |
1209 | verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) == 0); | |
1210 | ||
1211 | if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, | |
1212 | &child, &children) != 0) { | |
1213 | ||
1214 | if (strcmp(type, VDEV_TYPE_DISK) != 0) | |
1215 | return (0); | |
1216 | ||
1217 | /* | |
d603ed6c BB |
1218 | * We have a disk device. If this is a whole disk write |
1219 | * out the efi partition table, otherwise write zero's to | |
1220 | * the first 4k of the partition. This is to ensure that | |
1221 | * libblkid will not misidentify the partition due to a | |
1222 | * magic value left by the previous filesystem. | |
34dc7c2f | 1223 | */ |
d603ed6c BB |
1224 | verify(!nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path)); |
1225 | verify(!nvlist_lookup_uint64(nv, ZPOOL_CONFIG_WHOLE_DISK, | |
1226 | &wholedisk)); | |
1227 | ||
1228 | if (!wholedisk) { | |
cae5b340 AX |
1229 | /* |
1230 | * Update device id string for mpath nodes (Linux only) | |
1231 | */ | |
1232 | if (is_mpath_whole_disk(path)) | |
1233 | update_vdev_config_dev_strs(nv); | |
1234 | ||
1235 | if (!is_spare(NULL, path)) | |
1236 | (void) zero_label(path); | |
8128bd89 | 1237 | return (0); |
d603ed6c BB |
1238 | } |
1239 | ||
d877ac6b | 1240 | if (realpath(path, devpath) == NULL) { |
d603ed6c BB |
1241 | ret = errno; |
1242 | (void) fprintf(stderr, | |
1243 | gettext("cannot resolve path '%s'\n"), path); | |
1244 | return (ret); | |
1245 | } | |
34dc7c2f | 1246 | |
d877ac6b NB |
1247 | /* |
1248 | * Remove any previously existing symlink from a udev path to | |
5eacc075 AX |
1249 | * the device before labeling the disk. This ensures that |
1250 | * only newly created links are used. Otherwise there is a | |
1251 | * window between when udev deletes and recreates the link | |
1252 | * during which access attempts will fail with ENOENT. | |
d877ac6b | 1253 | */ |
cae5b340 | 1254 | strlcpy(udevpath, path, MAXPATHLEN); |
eac47204 BB |
1255 | (void) zfs_append_partition(udevpath, MAXPATHLEN); |
1256 | ||
8128bd89 BB |
1257 | fd = open(devpath, O_RDWR|O_EXCL); |
1258 | if (fd == -1) { | |
1259 | if (errno == EBUSY) | |
1260 | is_exclusive = 1; | |
1261 | } else { | |
1262 | (void) close(fd); | |
1263 | } | |
34dc7c2f BB |
1264 | |
1265 | /* | |
8128bd89 BB |
1266 | * If the partition exists, contains a valid spare label, |
1267 | * and is opened exclusively there is no need to partition | |
1268 | * it. Hot spares have already been partitioned and are | |
1269 | * held open exclusively by the kernel as a safety measure. | |
1270 | * | |
1271 | * If the provided path is for a /dev/disk/ device its | |
1272 | * symbolic link will be removed, partition table created, | |
1273 | * and then block until udev creates the new link. | |
34dc7c2f | 1274 | */ |
8128bd89 | 1275 | if (!is_exclusive || !is_spare(NULL, udevpath)) { |
5eacc075 AX |
1276 | char *devnode = strrchr(devpath, '/') + 1; |
1277 | ||
a08ee875 | 1278 | ret = strncmp(udevpath, UDISK_ROOT, strlen(UDISK_ROOT)); |
8128bd89 BB |
1279 | if (ret == 0) { |
1280 | ret = lstat64(udevpath, &statbuf); | |
1281 | if (ret == 0 && S_ISLNK(statbuf.st_mode)) | |
1282 | (void) unlink(udevpath); | |
1283 | } | |
1284 | ||
5eacc075 AX |
1285 | /* |
1286 | * When labeling a pool the raw device node name | |
1287 | * is provided as it appears under /dev/. | |
1288 | */ | |
1289 | if (zpool_label_disk(g_zfs, zhp, devnode) == -1) | |
8128bd89 BB |
1290 | return (-1); |
1291 | ||
5eacc075 AX |
1292 | /* |
1293 | * Wait for udev to signal the device is available | |
1294 | * by the provided path. | |
1295 | */ | |
a08ee875 | 1296 | ret = zpool_label_disk_wait(udevpath, DISK_LABEL_WAIT); |
8128bd89 | 1297 | if (ret) { |
5eacc075 AX |
1298 | (void) fprintf(stderr, |
1299 | gettext("missing link: %s was " | |
1300 | "partitioned but %s is missing\n"), | |
1301 | devnode, udevpath); | |
1302 | return (ret); | |
8128bd89 BB |
1303 | } |
1304 | ||
5eacc075 AX |
1305 | ret = zero_label(udevpath); |
1306 | if (ret) | |
1307 | return (ret); | |
34dc7c2f BB |
1308 | } |
1309 | ||
34dc7c2f | 1310 | /* |
eac47204 | 1311 | * Update the path to refer to the partition. The presence of |
34dc7c2f | 1312 | * the 'whole_disk' field indicates to the CLI that we should |
eac47204 | 1313 | * chop off the partition number when displaying the device in |
34dc7c2f BB |
1314 | * future output. |
1315 | */ | |
d877ac6b | 1316 | verify(nvlist_add_string(nv, ZPOOL_CONFIG_PATH, udevpath) == 0); |
34dc7c2f | 1317 | |
cae5b340 AX |
1318 | /* |
1319 | * Update device id strings for whole disks (Linux only) | |
1320 | */ | |
1321 | update_vdev_config_dev_strs(nv); | |
1322 | ||
34dc7c2f BB |
1323 | return (0); |
1324 | } | |
1325 | ||
1326 | for (c = 0; c < children; c++) | |
1327 | if ((ret = make_disks(zhp, child[c])) != 0) | |
1328 | return (ret); | |
1329 | ||
1330 | if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES, | |
1331 | &child, &children) == 0) | |
1332 | for (c = 0; c < children; c++) | |
1333 | if ((ret = make_disks(zhp, child[c])) != 0) | |
1334 | return (ret); | |
1335 | ||
1336 | if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE, | |
1337 | &child, &children) == 0) | |
1338 | for (c = 0; c < children; c++) | |
1339 | if ((ret = make_disks(zhp, child[c])) != 0) | |
1340 | return (ret); | |
1341 | ||
1342 | return (0); | |
1343 | } | |
1344 | ||
34dc7c2f BB |
1345 | /* |
1346 | * Go through and find any devices that are in use. We rely on libdiskmgt for | |
1347 | * the majority of this task. | |
1348 | */ | |
e10b0808 AX |
1349 | static boolean_t |
1350 | is_device_in_use(nvlist_t *config, nvlist_t *nv, boolean_t force, | |
428870ff | 1351 | boolean_t replacing, boolean_t isspare) |
34dc7c2f BB |
1352 | { |
1353 | nvlist_t **child; | |
1354 | uint_t c, children; | |
1355 | char *type, *path; | |
d603ed6c | 1356 | int ret = 0; |
34dc7c2f | 1357 | char buf[MAXPATHLEN]; |
d603ed6c | 1358 | uint64_t wholedisk = B_FALSE; |
e10b0808 | 1359 | boolean_t anyinuse = B_FALSE; |
34dc7c2f BB |
1360 | |
1361 | verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_TYPE, &type) == 0); | |
1362 | ||
1363 | if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN, | |
1364 | &child, &children) != 0) { | |
1365 | ||
d603ed6c BB |
1366 | verify(!nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path)); |
1367 | if (strcmp(type, VDEV_TYPE_DISK) == 0) | |
1368 | verify(!nvlist_lookup_uint64(nv, | |
a08ee875 | 1369 | ZPOOL_CONFIG_WHOLE_DISK, &wholedisk)); |
34dc7c2f BB |
1370 | |
1371 | /* | |
1372 | * As a generic check, we look to see if this is a replace of a | |
1373 | * hot spare within the same pool. If so, we allow it | |
d603ed6c | 1374 | * regardless of what libblkid or zpool_in_use() says. |
34dc7c2f | 1375 | */ |
428870ff | 1376 | if (replacing) { |
8128bd89 BB |
1377 | (void) strlcpy(buf, path, sizeof (buf)); |
1378 | if (wholedisk) { | |
1379 | ret = zfs_append_partition(buf, sizeof (buf)); | |
1380 | if (ret == -1) | |
1381 | return (-1); | |
1382 | } | |
428870ff | 1383 | |
34dc7c2f | 1384 | if (is_spare(config, buf)) |
e10b0808 | 1385 | return (B_FALSE); |
34dc7c2f BB |
1386 | } |
1387 | ||
1388 | if (strcmp(type, VDEV_TYPE_DISK) == 0) | |
d603ed6c | 1389 | ret = check_device(path, force, isspare, wholedisk); |
34dc7c2f | 1390 | |
e10b0808 | 1391 | else if (strcmp(type, VDEV_TYPE_FILE) == 0) |
34dc7c2f BB |
1392 | ret = check_file(path, force, isspare); |
1393 | ||
e10b0808 | 1394 | return (ret != 0); |
34dc7c2f BB |
1395 | } |
1396 | ||
1397 | for (c = 0; c < children; c++) | |
e10b0808 AX |
1398 | if (is_device_in_use(config, child[c], force, replacing, |
1399 | B_FALSE)) | |
1400 | anyinuse = B_TRUE; | |
34dc7c2f BB |
1401 | |
1402 | if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES, | |
1403 | &child, &children) == 0) | |
1404 | for (c = 0; c < children; c++) | |
e10b0808 AX |
1405 | if (is_device_in_use(config, child[c], force, replacing, |
1406 | B_TRUE)) | |
1407 | anyinuse = B_TRUE; | |
34dc7c2f BB |
1408 | |
1409 | if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_L2CACHE, | |
1410 | &child, &children) == 0) | |
1411 | for (c = 0; c < children; c++) | |
e10b0808 AX |
1412 | if (is_device_in_use(config, child[c], force, replacing, |
1413 | B_FALSE)) | |
1414 | anyinuse = B_TRUE; | |
34dc7c2f | 1415 | |
e10b0808 | 1416 | return (anyinuse); |
34dc7c2f BB |
1417 | } |
1418 | ||
1419 | static const char * | |
45d1cae3 | 1420 | is_grouping(const char *type, int *mindev, int *maxdev) |
34dc7c2f | 1421 | { |
45d1cae3 BB |
1422 | if (strncmp(type, "raidz", 5) == 0) { |
1423 | const char *p = type + 5; | |
1424 | char *end; | |
1425 | long nparity; | |
1426 | ||
1427 | if (*p == '\0') { | |
1428 | nparity = 1; | |
1429 | } else if (*p == '0') { | |
1430 | return (NULL); /* no zero prefixes allowed */ | |
1431 | } else { | |
1432 | errno = 0; | |
1433 | nparity = strtol(p, &end, 10); | |
1434 | if (errno != 0 || nparity < 1 || nparity >= 255 || | |
1435 | *end != '\0') | |
1436 | return (NULL); | |
1437 | } | |
34dc7c2f | 1438 | |
34dc7c2f | 1439 | if (mindev != NULL) |
45d1cae3 BB |
1440 | *mindev = nparity + 1; |
1441 | if (maxdev != NULL) | |
1442 | *maxdev = 255; | |
34dc7c2f BB |
1443 | return (VDEV_TYPE_RAIDZ); |
1444 | } | |
1445 | ||
45d1cae3 BB |
1446 | if (maxdev != NULL) |
1447 | *maxdev = INT_MAX; | |
1448 | ||
34dc7c2f BB |
1449 | if (strcmp(type, "mirror") == 0) { |
1450 | if (mindev != NULL) | |
1451 | *mindev = 2; | |
1452 | return (VDEV_TYPE_MIRROR); | |
1453 | } | |
1454 | ||
1455 | if (strcmp(type, "spare") == 0) { | |
1456 | if (mindev != NULL) | |
1457 | *mindev = 1; | |
1458 | return (VDEV_TYPE_SPARE); | |
1459 | } | |
1460 | ||
1461 | if (strcmp(type, "log") == 0) { | |
1462 | if (mindev != NULL) | |
1463 | *mindev = 1; | |
1464 | return (VDEV_TYPE_LOG); | |
1465 | } | |
1466 | ||
1467 | if (strcmp(type, "cache") == 0) { | |
1468 | if (mindev != NULL) | |
1469 | *mindev = 1; | |
1470 | return (VDEV_TYPE_L2CACHE); | |
1471 | } | |
1472 | ||
1473 | return (NULL); | |
1474 | } | |
1475 | ||
1476 | /* | |
1477 | * Construct a syntactically valid vdev specification, | |
1478 | * and ensure that all devices and files exist and can be opened. | |
1479 | * Note: we don't bother freeing anything in the error paths | |
1480 | * because the program is just going to exit anyway. | |
1481 | */ | |
1482 | nvlist_t * | |
df30f566 | 1483 | construct_spec(nvlist_t *props, int argc, char **argv) |
34dc7c2f BB |
1484 | { |
1485 | nvlist_t *nvroot, *nv, **top, **spares, **l2cache; | |
45d1cae3 | 1486 | int t, toplevels, mindev, maxdev, nspares, nlogs, nl2cache; |
34dc7c2f BB |
1487 | const char *type; |
1488 | uint64_t is_log; | |
1489 | boolean_t seen_logs; | |
1490 | ||
1491 | top = NULL; | |
1492 | toplevels = 0; | |
1493 | spares = NULL; | |
1494 | l2cache = NULL; | |
1495 | nspares = 0; | |
1496 | nlogs = 0; | |
1497 | nl2cache = 0; | |
1498 | is_log = B_FALSE; | |
1499 | seen_logs = B_FALSE; | |
cae5b340 | 1500 | nvroot = NULL; |
34dc7c2f BB |
1501 | |
1502 | while (argc > 0) { | |
1503 | nv = NULL; | |
1504 | ||
1505 | /* | |
1506 | * If it's a mirror or raidz, the subsequent arguments are | |
1507 | * its leaves -- until we encounter the next mirror or raidz. | |
1508 | */ | |
45d1cae3 | 1509 | if ((type = is_grouping(argv[0], &mindev, &maxdev)) != NULL) { |
34dc7c2f BB |
1510 | nvlist_t **child = NULL; |
1511 | int c, children = 0; | |
1512 | ||
1513 | if (strcmp(type, VDEV_TYPE_SPARE) == 0) { | |
1514 | if (spares != NULL) { | |
1515 | (void) fprintf(stderr, | |
1516 | gettext("invalid vdev " | |
1517 | "specification: 'spare' can be " | |
1518 | "specified only once\n")); | |
cae5b340 | 1519 | goto spec_out; |
34dc7c2f BB |
1520 | } |
1521 | is_log = B_FALSE; | |
1522 | } | |
1523 | ||
1524 | if (strcmp(type, VDEV_TYPE_LOG) == 0) { | |
1525 | if (seen_logs) { | |
1526 | (void) fprintf(stderr, | |
1527 | gettext("invalid vdev " | |
1528 | "specification: 'log' can be " | |
1529 | "specified only once\n")); | |
cae5b340 | 1530 | goto spec_out; |
34dc7c2f BB |
1531 | } |
1532 | seen_logs = B_TRUE; | |
1533 | is_log = B_TRUE; | |
1534 | argc--; | |
1535 | argv++; | |
1536 | /* | |
1537 | * A log is not a real grouping device. | |
1538 | * We just set is_log and continue. | |
1539 | */ | |
1540 | continue; | |
1541 | } | |
1542 | ||
1543 | if (strcmp(type, VDEV_TYPE_L2CACHE) == 0) { | |
1544 | if (l2cache != NULL) { | |
1545 | (void) fprintf(stderr, | |
1546 | gettext("invalid vdev " | |
1547 | "specification: 'cache' can be " | |
1548 | "specified only once\n")); | |
cae5b340 | 1549 | goto spec_out; |
34dc7c2f BB |
1550 | } |
1551 | is_log = B_FALSE; | |
1552 | } | |
1553 | ||
1554 | if (is_log) { | |
1555 | if (strcmp(type, VDEV_TYPE_MIRROR) != 0) { | |
1556 | (void) fprintf(stderr, | |
1557 | gettext("invalid vdev " | |
1558 | "specification: unsupported 'log' " | |
1559 | "device: %s\n"), type); | |
cae5b340 | 1560 | goto spec_out; |
34dc7c2f BB |
1561 | } |
1562 | nlogs++; | |
1563 | } | |
1564 | ||
1565 | for (c = 1; c < argc; c++) { | |
45d1cae3 | 1566 | if (is_grouping(argv[c], NULL, NULL) != NULL) |
34dc7c2f BB |
1567 | break; |
1568 | children++; | |
1569 | child = realloc(child, | |
1570 | children * sizeof (nvlist_t *)); | |
1571 | if (child == NULL) | |
1572 | zpool_no_memory(); | |
a08ee875 | 1573 | if ((nv = make_leaf_vdev(props, argv[c], |
cae5b340 AX |
1574 | B_FALSE)) == NULL) { |
1575 | for (c = 0; c < children - 1; c++) | |
1576 | nvlist_free(child[c]); | |
1577 | free(child); | |
1578 | goto spec_out; | |
1579 | } | |
1580 | ||
34dc7c2f BB |
1581 | child[children - 1] = nv; |
1582 | } | |
1583 | ||
1584 | if (children < mindev) { | |
1585 | (void) fprintf(stderr, gettext("invalid vdev " | |
1586 | "specification: %s requires at least %d " | |
1587 | "devices\n"), argv[0], mindev); | |
cae5b340 AX |
1588 | for (c = 0; c < children; c++) |
1589 | nvlist_free(child[c]); | |
1590 | free(child); | |
1591 | goto spec_out; | |
34dc7c2f BB |
1592 | } |
1593 | ||
45d1cae3 BB |
1594 | if (children > maxdev) { |
1595 | (void) fprintf(stderr, gettext("invalid vdev " | |
1596 | "specification: %s supports no more than " | |
1597 | "%d devices\n"), argv[0], maxdev); | |
cae5b340 AX |
1598 | for (c = 0; c < children; c++) |
1599 | nvlist_free(child[c]); | |
1600 | free(child); | |
1601 | goto spec_out; | |
45d1cae3 BB |
1602 | } |
1603 | ||
34dc7c2f BB |
1604 | argc -= c; |
1605 | argv += c; | |
1606 | ||
1607 | if (strcmp(type, VDEV_TYPE_SPARE) == 0) { | |
1608 | spares = child; | |
1609 | nspares = children; | |
1610 | continue; | |
1611 | } else if (strcmp(type, VDEV_TYPE_L2CACHE) == 0) { | |
1612 | l2cache = child; | |
1613 | nl2cache = children; | |
1614 | continue; | |
1615 | } else { | |
1616 | verify(nvlist_alloc(&nv, NV_UNIQUE_NAME, | |
1617 | 0) == 0); | |
1618 | verify(nvlist_add_string(nv, ZPOOL_CONFIG_TYPE, | |
1619 | type) == 0); | |
1620 | verify(nvlist_add_uint64(nv, | |
1621 | ZPOOL_CONFIG_IS_LOG, is_log) == 0); | |
1622 | if (strcmp(type, VDEV_TYPE_RAIDZ) == 0) { | |
1623 | verify(nvlist_add_uint64(nv, | |
1624 | ZPOOL_CONFIG_NPARITY, | |
1625 | mindev - 1) == 0); | |
1626 | } | |
1627 | verify(nvlist_add_nvlist_array(nv, | |
1628 | ZPOOL_CONFIG_CHILDREN, child, | |
1629 | children) == 0); | |
1630 | ||
1631 | for (c = 0; c < children; c++) | |
1632 | nvlist_free(child[c]); | |
1633 | free(child); | |
1634 | } | |
1635 | } else { | |
1636 | /* | |
1637 | * We have a device. Pass off to make_leaf_vdev() to | |
1638 | * construct the appropriate nvlist describing the vdev. | |
1639 | */ | |
a08ee875 LG |
1640 | if ((nv = make_leaf_vdev(props, argv[0], |
1641 | is_log)) == NULL) | |
cae5b340 AX |
1642 | goto spec_out; |
1643 | ||
34dc7c2f BB |
1644 | if (is_log) |
1645 | nlogs++; | |
1646 | argc--; | |
1647 | argv++; | |
1648 | } | |
1649 | ||
1650 | toplevels++; | |
1651 | top = realloc(top, toplevels * sizeof (nvlist_t *)); | |
1652 | if (top == NULL) | |
1653 | zpool_no_memory(); | |
1654 | top[toplevels - 1] = nv; | |
1655 | } | |
1656 | ||
1657 | if (toplevels == 0 && nspares == 0 && nl2cache == 0) { | |
1658 | (void) fprintf(stderr, gettext("invalid vdev " | |
1659 | "specification: at least one toplevel vdev must be " | |
1660 | "specified\n")); | |
cae5b340 | 1661 | goto spec_out; |
34dc7c2f BB |
1662 | } |
1663 | ||
1664 | if (seen_logs && nlogs == 0) { | |
1665 | (void) fprintf(stderr, gettext("invalid vdev specification: " | |
1666 | "log requires at least 1 device\n")); | |
cae5b340 | 1667 | goto spec_out; |
34dc7c2f BB |
1668 | } |
1669 | ||
1670 | /* | |
1671 | * Finally, create nvroot and add all top-level vdevs to it. | |
1672 | */ | |
1673 | verify(nvlist_alloc(&nvroot, NV_UNIQUE_NAME, 0) == 0); | |
1674 | verify(nvlist_add_string(nvroot, ZPOOL_CONFIG_TYPE, | |
1675 | VDEV_TYPE_ROOT) == 0); | |
1676 | verify(nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN, | |
1677 | top, toplevels) == 0); | |
1678 | if (nspares != 0) | |
1679 | verify(nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES, | |
1680 | spares, nspares) == 0); | |
1681 | if (nl2cache != 0) | |
1682 | verify(nvlist_add_nvlist_array(nvroot, ZPOOL_CONFIG_L2CACHE, | |
1683 | l2cache, nl2cache) == 0); | |
1684 | ||
cae5b340 | 1685 | spec_out: |
34dc7c2f BB |
1686 | for (t = 0; t < toplevels; t++) |
1687 | nvlist_free(top[t]); | |
1688 | for (t = 0; t < nspares; t++) | |
1689 | nvlist_free(spares[t]); | |
1690 | for (t = 0; t < nl2cache; t++) | |
1691 | nvlist_free(l2cache[t]); | |
cae5b340 AX |
1692 | |
1693 | free(spares); | |
1694 | free(l2cache); | |
34dc7c2f BB |
1695 | free(top); |
1696 | ||
1697 | return (nvroot); | |
1698 | } | |
1699 | ||
428870ff BB |
1700 | nvlist_t * |
1701 | split_mirror_vdev(zpool_handle_t *zhp, char *newname, nvlist_t *props, | |
1702 | splitflags_t flags, int argc, char **argv) | |
1703 | { | |
1704 | nvlist_t *newroot = NULL, **child; | |
1705 | uint_t c, children; | |
1706 | ||
1707 | if (argc > 0) { | |
df30f566 | 1708 | if ((newroot = construct_spec(props, argc, argv)) == NULL) { |
428870ff BB |
1709 | (void) fprintf(stderr, gettext("Unable to build a " |
1710 | "pool from the specified devices\n")); | |
1711 | return (NULL); | |
1712 | } | |
1713 | ||
1714 | if (!flags.dryrun && make_disks(zhp, newroot) != 0) { | |
1715 | nvlist_free(newroot); | |
1716 | return (NULL); | |
1717 | } | |
1718 | ||
1719 | /* avoid any tricks in the spec */ | |
1720 | verify(nvlist_lookup_nvlist_array(newroot, | |
1721 | ZPOOL_CONFIG_CHILDREN, &child, &children) == 0); | |
1722 | for (c = 0; c < children; c++) { | |
1723 | char *path; | |
1724 | const char *type; | |
1725 | int min, max; | |
1726 | ||
1727 | verify(nvlist_lookup_string(child[c], | |
1728 | ZPOOL_CONFIG_PATH, &path) == 0); | |
1729 | if ((type = is_grouping(path, &min, &max)) != NULL) { | |
1730 | (void) fprintf(stderr, gettext("Cannot use " | |
1731 | "'%s' as a device for splitting\n"), type); | |
1732 | nvlist_free(newroot); | |
1733 | return (NULL); | |
1734 | } | |
1735 | } | |
1736 | } | |
1737 | ||
1738 | if (zpool_vdev_split(zhp, newname, &newroot, props, flags) != 0) { | |
cae5b340 | 1739 | nvlist_free(newroot); |
428870ff BB |
1740 | return (NULL); |
1741 | } | |
1742 | ||
1743 | return (newroot); | |
1744 | } | |
34dc7c2f BB |
1745 | |
1746 | /* | |
1747 | * Get and validate the contents of the given vdev specification. This ensures | |
1748 | * that the nvlist returned is well-formed, that all the devices exist, and that | |
1749 | * they are not currently in use by any other known consumer. The 'poolconfig' | |
1750 | * parameter is the current configuration of the pool when adding devices | |
1751 | * existing pool, and is used to perform additional checks, such as changing the | |
1752 | * replication level of the pool. It can be 'NULL' to indicate that this is a | |
1753 | * new pool. The 'force' flag controls whether devices should be forcefully | |
1754 | * added, even if they appear in use. | |
1755 | */ | |
1756 | nvlist_t * | |
df30f566 | 1757 | make_root_vdev(zpool_handle_t *zhp, nvlist_t *props, int force, int check_rep, |
428870ff | 1758 | boolean_t replacing, boolean_t dryrun, int argc, char **argv) |
34dc7c2f BB |
1759 | { |
1760 | nvlist_t *newroot; | |
1761 | nvlist_t *poolconfig = NULL; | |
1762 | is_force = force; | |
1763 | ||
1764 | /* | |
1765 | * Construct the vdev specification. If this is successful, we know | |
1766 | * that we have a valid specification, and that all devices can be | |
1767 | * opened. | |
1768 | */ | |
df30f566 | 1769 | if ((newroot = construct_spec(props, argc, argv)) == NULL) |
34dc7c2f BB |
1770 | return (NULL); |
1771 | ||
e10b0808 AX |
1772 | if (zhp && ((poolconfig = zpool_get_config(zhp, NULL)) == NULL)) { |
1773 | nvlist_free(newroot); | |
34dc7c2f | 1774 | return (NULL); |
e10b0808 | 1775 | } |
34dc7c2f BB |
1776 | |
1777 | /* | |
1778 | * Validate each device to make sure that its not shared with another | |
1779 | * subsystem. We do this even if 'force' is set, because there are some | |
1780 | * uses (such as a dedicated dump device) that even '-f' cannot | |
1781 | * override. | |
1782 | */ | |
e10b0808 | 1783 | if (is_device_in_use(poolconfig, newroot, force, replacing, B_FALSE)) { |
34dc7c2f BB |
1784 | nvlist_free(newroot); |
1785 | return (NULL); | |
1786 | } | |
1787 | ||
1788 | /* | |
1789 | * Check the replication level of the given vdevs and report any errors | |
1790 | * found. We include the existing pool spec, if any, as we need to | |
1791 | * catch changes against the existing replication level. | |
1792 | */ | |
1793 | if (check_rep && check_replication(poolconfig, newroot) != 0) { | |
1794 | nvlist_free(newroot); | |
1795 | return (NULL); | |
1796 | } | |
1797 | ||
1798 | /* | |
1799 | * Run through the vdev specification and label any whole disks found. | |
1800 | */ | |
b128c09f | 1801 | if (!dryrun && make_disks(zhp, newroot) != 0) { |
34dc7c2f BB |
1802 | nvlist_free(newroot); |
1803 | return (NULL); | |
1804 | } | |
1805 | ||
1806 | return (newroot); | |
1807 | } |