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1 | package PVE::QemuServer::Drive; |
2 | ||
3 | use strict; | |
4 | use warnings; | |
5 | ||
6 | use PVE::Storage; | |
7 | use PVE::JSONSchema qw(get_standard_option); | |
8 | ||
9 | use base qw(Exporter); | |
10 | ||
11 | our @EXPORT_OK = qw( | |
12 | is_valid_drivename | |
13 | drive_is_cloudinit | |
14 | drive_is_cdrom | |
15 | parse_drive | |
16 | print_drive | |
17 | foreach_drive | |
18 | foreach_volid | |
19 | ); | |
20 | ||
21 | our $QEMU_FORMAT_RE = qr/raw|cow|qcow|qcow2|qed|vmdk|cloop/; | |
22 | ||
23 | PVE::JSONSchema::register_standard_option('pve-qm-image-format', { | |
24 | type => 'string', | |
25 | enum => [qw(raw cow qcow qed qcow2 vmdk cloop)], | |
26 | description => "The drive's backing file's data format.", | |
27 | optional => 1, | |
28 | }); | |
29 | ||
30 | my $MAX_IDE_DISKS = 4; | |
31 | my $MAX_SCSI_DISKS = 31; | |
32 | my $MAX_VIRTIO_DISKS = 16; | |
33 | our $MAX_SATA_DISKS = 6; | |
34 | our $MAX_UNUSED_DISKS = 256; | |
35 | ||
36 | our $drivedesc_hash; | |
37 | ||
38 | my %drivedesc_base = ( | |
39 | volume => { alias => 'file' }, | |
40 | file => { | |
41 | type => 'string', | |
42 | format => 'pve-volume-id-or-qm-path', | |
43 | default_key => 1, | |
44 | format_description => 'volume', | |
45 | description => "The drive's backing volume.", | |
46 | }, | |
47 | media => { | |
48 | type => 'string', | |
49 | enum => [qw(cdrom disk)], | |
50 | description => "The drive's media type.", | |
51 | default => 'disk', | |
52 | optional => 1 | |
53 | }, | |
54 | cyls => { | |
55 | type => 'integer', | |
56 | description => "Force the drive's physical geometry to have a specific cylinder count.", | |
57 | optional => 1 | |
58 | }, | |
59 | heads => { | |
60 | type => 'integer', | |
61 | description => "Force the drive's physical geometry to have a specific head count.", | |
62 | optional => 1 | |
63 | }, | |
64 | secs => { | |
65 | type => 'integer', | |
66 | description => "Force the drive's physical geometry to have a specific sector count.", | |
67 | optional => 1 | |
68 | }, | |
69 | trans => { | |
70 | type => 'string', | |
71 | enum => [qw(none lba auto)], | |
72 | description => "Force disk geometry bios translation mode.", | |
73 | optional => 1, | |
74 | }, | |
75 | snapshot => { | |
76 | type => 'boolean', | |
77 | description => "Controls qemu's snapshot mode feature." | |
78 | . " If activated, changes made to the disk are temporary and will" | |
79 | . " be discarded when the VM is shutdown.", | |
80 | optional => 1, | |
81 | }, | |
82 | cache => { | |
83 | type => 'string', | |
84 | enum => [qw(none writethrough writeback unsafe directsync)], | |
85 | description => "The drive's cache mode", | |
86 | optional => 1, | |
87 | }, | |
88 | format => get_standard_option('pve-qm-image-format'), | |
89 | size => { | |
90 | type => 'string', | |
91 | format => 'disk-size', | |
92 | format_description => 'DiskSize', | |
93 | description => "Disk size. This is purely informational and has no effect.", | |
94 | optional => 1, | |
95 | }, | |
96 | backup => { | |
97 | type => 'boolean', | |
98 | description => "Whether the drive should be included when making backups.", | |
99 | optional => 1, | |
100 | }, | |
101 | replicate => { | |
102 | type => 'boolean', | |
103 | description => 'Whether the drive should considered for replication jobs.', | |
104 | optional => 1, | |
105 | default => 1, | |
106 | }, | |
107 | rerror => { | |
108 | type => 'string', | |
109 | enum => [qw(ignore report stop)], | |
110 | description => 'Read error action.', | |
111 | optional => 1, | |
112 | }, | |
113 | werror => { | |
114 | type => 'string', | |
115 | enum => [qw(enospc ignore report stop)], | |
116 | description => 'Write error action.', | |
117 | optional => 1, | |
118 | }, | |
119 | aio => { | |
120 | type => 'string', | |
121 | enum => [qw(native threads)], | |
122 | description => 'AIO type to use.', | |
123 | optional => 1, | |
124 | }, | |
125 | discard => { | |
126 | type => 'string', | |
127 | enum => [qw(ignore on)], | |
128 | description => 'Controls whether to pass discard/trim requests to the underlying storage.', | |
129 | optional => 1, | |
130 | }, | |
131 | detect_zeroes => { | |
132 | type => 'boolean', | |
133 | description => 'Controls whether to detect and try to optimize writes of zeroes.', | |
134 | optional => 1, | |
135 | }, | |
136 | serial => { | |
137 | type => 'string', | |
138 | format => 'urlencoded', | |
139 | format_description => 'serial', | |
140 | maxLength => 20*3, # *3 since it's %xx url enoded | |
141 | description => "The drive's reported serial number, url-encoded, up to 20 bytes long.", | |
142 | optional => 1, | |
143 | }, | |
144 | shared => { | |
145 | type => 'boolean', | |
146 | description => 'Mark this locally-managed volume as available on all nodes', | |
147 | verbose_description => "Mark this locally-managed volume as available on all nodes.\n\nWARNING: This option does not share the volume automatically, it assumes it is shared already!", | |
148 | optional => 1, | |
149 | default => 0, | |
150 | } | |
151 | ); | |
152 | ||
153 | my %iothread_fmt = ( iothread => { | |
154 | type => 'boolean', | |
155 | description => "Whether to use iothreads for this drive", | |
156 | optional => 1, | |
157 | }); | |
158 | ||
159 | my %model_fmt = ( | |
160 | model => { | |
161 | type => 'string', | |
162 | format => 'urlencoded', | |
163 | format_description => 'model', | |
164 | maxLength => 40*3, # *3 since it's %xx url enoded | |
165 | description => "The drive's reported model name, url-encoded, up to 40 bytes long.", | |
166 | optional => 1, | |
167 | }, | |
168 | ); | |
169 | ||
170 | my %queues_fmt = ( | |
171 | queues => { | |
172 | type => 'integer', | |
173 | description => "Number of queues.", | |
174 | minimum => 2, | |
175 | optional => 1 | |
176 | } | |
177 | ); | |
178 | ||
179 | my %scsiblock_fmt = ( | |
180 | scsiblock => { | |
181 | type => 'boolean', | |
182 | description => "whether to use scsi-block for full passthrough of host block device\n\nWARNING: can lead to I/O errors in combination with low memory or high memory fragmentation on host", | |
183 | optional => 1, | |
184 | default => 0, | |
185 | }, | |
186 | ); | |
187 | ||
188 | my %ssd_fmt = ( | |
189 | ssd => { | |
190 | type => 'boolean', | |
191 | description => "Whether to expose this drive as an SSD, rather than a rotational hard disk.", | |
192 | optional => 1, | |
193 | }, | |
194 | ); | |
195 | ||
196 | my %wwn_fmt = ( | |
197 | wwn => { | |
198 | type => 'string', | |
199 | pattern => qr/^(0x)[0-9a-fA-F]{16}/, | |
200 | format_description => 'wwn', | |
201 | description => "The drive's worldwide name, encoded as 16 bytes hex string, prefixed by '0x'.", | |
202 | optional => 1, | |
203 | }, | |
204 | ); | |
205 | ||
206 | my $add_throttle_desc = sub { | |
207 | my ($key, $type, $what, $unit, $longunit, $minimum) = @_; | |
208 | my $d = { | |
209 | type => $type, | |
210 | format_description => $unit, | |
211 | description => "Maximum $what in $longunit.", | |
212 | optional => 1, | |
213 | }; | |
214 | $d->{minimum} = $minimum if defined($minimum); | |
215 | $drivedesc_base{$key} = $d; | |
216 | }; | |
217 | # throughput: (leaky bucket) | |
218 | $add_throttle_desc->('bps', 'integer', 'r/w speed', 'bps', 'bytes per second'); | |
219 | $add_throttle_desc->('bps_rd', 'integer', 'read speed', 'bps', 'bytes per second'); | |
220 | $add_throttle_desc->('bps_wr', 'integer', 'write speed', 'bps', 'bytes per second'); | |
221 | $add_throttle_desc->('mbps', 'number', 'r/w speed', 'mbps', 'megabytes per second'); | |
222 | $add_throttle_desc->('mbps_rd', 'number', 'read speed', 'mbps', 'megabytes per second'); | |
223 | $add_throttle_desc->('mbps_wr', 'number', 'write speed', 'mbps', 'megabytes per second'); | |
224 | $add_throttle_desc->('iops', 'integer', 'r/w I/O', 'iops', 'operations per second'); | |
225 | $add_throttle_desc->('iops_rd', 'integer', 'read I/O', 'iops', 'operations per second'); | |
226 | $add_throttle_desc->('iops_wr', 'integer', 'write I/O', 'iops', 'operations per second'); | |
227 | ||
228 | # pools: (pool of IO before throttling starts taking effect) | |
229 | $add_throttle_desc->('mbps_max', 'number', 'unthrottled r/w pool', 'mbps', 'megabytes per second'); | |
230 | $add_throttle_desc->('mbps_rd_max', 'number', 'unthrottled read pool', 'mbps', 'megabytes per second'); | |
231 | $add_throttle_desc->('mbps_wr_max', 'number', 'unthrottled write pool', 'mbps', 'megabytes per second'); | |
232 | $add_throttle_desc->('iops_max', 'integer', 'unthrottled r/w I/O pool', 'iops', 'operations per second'); | |
233 | $add_throttle_desc->('iops_rd_max', 'integer', 'unthrottled read I/O pool', 'iops', 'operations per second'); | |
234 | $add_throttle_desc->('iops_wr_max', 'integer', 'unthrottled write I/O pool', 'iops', 'operations per second'); | |
235 | ||
236 | # burst lengths | |
237 | $add_throttle_desc->('bps_max_length', 'integer', 'length of I/O bursts', 'seconds', 'seconds', 1); | |
238 | $add_throttle_desc->('bps_rd_max_length', 'integer', 'length of read I/O bursts', 'seconds', 'seconds', 1); | |
239 | $add_throttle_desc->('bps_wr_max_length', 'integer', 'length of write I/O bursts', 'seconds', 'seconds', 1); | |
240 | $add_throttle_desc->('iops_max_length', 'integer', 'length of I/O bursts', 'seconds', 'seconds', 1); | |
241 | $add_throttle_desc->('iops_rd_max_length', 'integer', 'length of read I/O bursts', 'seconds', 'seconds', 1); | |
242 | $add_throttle_desc->('iops_wr_max_length', 'integer', 'length of write I/O bursts', 'seconds', 'seconds', 1); | |
243 | ||
244 | # legacy support | |
245 | $drivedesc_base{'bps_rd_length'} = { alias => 'bps_rd_max_length' }; | |
246 | $drivedesc_base{'bps_wr_length'} = { alias => 'bps_wr_max_length' }; | |
247 | $drivedesc_base{'iops_rd_length'} = { alias => 'iops_rd_max_length' }; | |
248 | $drivedesc_base{'iops_wr_length'} = { alias => 'iops_wr_max_length' }; | |
249 | ||
250 | my $ide_fmt = { | |
251 | %drivedesc_base, | |
252 | %model_fmt, | |
253 | %ssd_fmt, | |
254 | %wwn_fmt, | |
255 | }; | |
256 | PVE::JSONSchema::register_format("pve-qm-ide", $ide_fmt); | |
257 | ||
258 | my $idedesc = { | |
259 | optional => 1, | |
260 | type => 'string', format => $ide_fmt, | |
261 | description => "Use volume as IDE hard disk or CD-ROM (n is 0 to " .($MAX_IDE_DISKS -1) . ").", | |
262 | }; | |
263 | PVE::JSONSchema::register_standard_option("pve-qm-ide", $idedesc); | |
264 | ||
265 | my $scsi_fmt = { | |
266 | %drivedesc_base, | |
267 | %iothread_fmt, | |
268 | %queues_fmt, | |
269 | %scsiblock_fmt, | |
270 | %ssd_fmt, | |
271 | %wwn_fmt, | |
272 | }; | |
273 | my $scsidesc = { | |
274 | optional => 1, | |
275 | type => 'string', format => $scsi_fmt, | |
276 | description => "Use volume as SCSI hard disk or CD-ROM (n is 0 to " . ($MAX_SCSI_DISKS - 1) . ").", | |
277 | }; | |
278 | PVE::JSONSchema::register_standard_option("pve-qm-scsi", $scsidesc); | |
279 | ||
280 | my $sata_fmt = { | |
281 | %drivedesc_base, | |
282 | %ssd_fmt, | |
283 | %wwn_fmt, | |
284 | }; | |
285 | my $satadesc = { | |
286 | optional => 1, | |
287 | type => 'string', format => $sata_fmt, | |
288 | description => "Use volume as SATA hard disk or CD-ROM (n is 0 to " . ($MAX_SATA_DISKS - 1). ").", | |
289 | }; | |
290 | PVE::JSONSchema::register_standard_option("pve-qm-sata", $satadesc); | |
291 | ||
292 | my $virtio_fmt = { | |
293 | %drivedesc_base, | |
294 | %iothread_fmt, | |
295 | }; | |
296 | my $virtiodesc = { | |
297 | optional => 1, | |
298 | type => 'string', format => $virtio_fmt, | |
299 | description => "Use volume as VIRTIO hard disk (n is 0 to " . ($MAX_VIRTIO_DISKS - 1) . ").", | |
300 | }; | |
301 | PVE::JSONSchema::register_standard_option("pve-qm-virtio", $virtiodesc); | |
302 | ||
303 | my $alldrive_fmt = { | |
304 | %drivedesc_base, | |
305 | %iothread_fmt, | |
306 | %model_fmt, | |
307 | %queues_fmt, | |
308 | %scsiblock_fmt, | |
309 | %ssd_fmt, | |
310 | %wwn_fmt, | |
311 | }; | |
312 | ||
313 | my $efidisk_fmt = { | |
314 | volume => { alias => 'file' }, | |
315 | file => { | |
316 | type => 'string', | |
317 | format => 'pve-volume-id-or-qm-path', | |
318 | default_key => 1, | |
319 | format_description => 'volume', | |
320 | description => "The drive's backing volume.", | |
321 | }, | |
322 | format => get_standard_option('pve-qm-image-format'), | |
323 | size => { | |
324 | type => 'string', | |
325 | format => 'disk-size', | |
326 | format_description => 'DiskSize', | |
327 | description => "Disk size. This is purely informational and has no effect.", | |
328 | optional => 1, | |
329 | }, | |
330 | }; | |
331 | ||
332 | my $efidisk_desc = { | |
333 | optional => 1, | |
334 | type => 'string', format => $efidisk_fmt, | |
335 | description => "Configure a Disk for storing EFI vars", | |
336 | }; | |
337 | ||
338 | PVE::JSONSchema::register_standard_option("pve-qm-efidisk", $efidisk_desc); | |
339 | ||
340 | for (my $i = 0; $i < $MAX_IDE_DISKS; $i++) { | |
341 | $drivedesc_hash->{"ide$i"} = $idedesc; | |
342 | } | |
343 | ||
344 | for (my $i = 0; $i < $MAX_SATA_DISKS; $i++) { | |
345 | $drivedesc_hash->{"sata$i"} = $satadesc; | |
346 | } | |
347 | ||
348 | for (my $i = 0; $i < $MAX_SCSI_DISKS; $i++) { | |
349 | $drivedesc_hash->{"scsi$i"} = $scsidesc; | |
350 | } | |
351 | ||
352 | for (my $i = 0; $i < $MAX_VIRTIO_DISKS; $i++) { | |
353 | $drivedesc_hash->{"virtio$i"} = $virtiodesc; | |
354 | } | |
355 | ||
356 | $drivedesc_hash->{efidisk0} = $efidisk_desc; | |
357 | ||
358 | our $unuseddesc = { | |
359 | optional => 1, | |
360 | type => 'string', format => 'pve-volume-id', | |
361 | description => "Reference to unused volumes. This is used internally, and should not be modified manually.", | |
362 | }; | |
363 | ||
364 | sub valid_drive_names { | |
365 | # order is important - used to autoselect boot disk | |
366 | return ((map { "ide$_" } (0 .. ($MAX_IDE_DISKS - 1))), | |
367 | (map { "scsi$_" } (0 .. ($MAX_SCSI_DISKS - 1))), | |
368 | (map { "virtio$_" } (0 .. ($MAX_VIRTIO_DISKS - 1))), | |
369 | (map { "sata$_" } (0 .. ($MAX_SATA_DISKS - 1))), | |
370 | 'efidisk0'); | |
371 | } | |
372 | ||
373 | sub is_valid_drivename { | |
374 | my $dev = shift; | |
375 | ||
376 | return defined($drivedesc_hash->{$dev}); | |
377 | } | |
378 | ||
379 | PVE::JSONSchema::register_format('pve-qm-bootdisk', \&verify_bootdisk); | |
380 | sub verify_bootdisk { | |
381 | my ($value, $noerr) = @_; | |
382 | ||
383 | return $value if is_valid_drivename($value); | |
384 | ||
385 | return undef if $noerr; | |
386 | ||
387 | die "invalid boot disk '$value'\n"; | |
388 | } | |
389 | ||
390 | sub drive_is_cloudinit { | |
391 | my ($drive) = @_; | |
392 | return $drive->{file} =~ m@[:/]vm-\d+-cloudinit(?:\.$QEMU_FORMAT_RE)?$@; | |
393 | } | |
394 | ||
395 | sub drive_is_cdrom { | |
396 | my ($drive, $exclude_cloudinit) = @_; | |
397 | ||
398 | return 0 if $exclude_cloudinit && drive_is_cloudinit($drive); | |
399 | ||
400 | return $drive && $drive->{media} && ($drive->{media} eq 'cdrom'); | |
401 | } | |
402 | ||
403 | # ideX = [volume=]volume-id[,media=d][,cyls=c,heads=h,secs=s[,trans=t]] | |
404 | # [,snapshot=on|off][,cache=on|off][,format=f][,backup=yes|no] | |
405 | # [,rerror=ignore|report|stop][,werror=enospc|ignore|report|stop] | |
406 | # [,aio=native|threads][,discard=ignore|on][,detect_zeroes=on|off] | |
407 | # [,iothread=on][,serial=serial][,model=model] | |
408 | ||
409 | sub parse_drive { | |
410 | my ($key, $data) = @_; | |
411 | ||
412 | my ($interface, $index); | |
413 | ||
414 | if ($key =~ m/^([^\d]+)(\d+)$/) { | |
415 | $interface = $1; | |
416 | $index = $2; | |
417 | } else { | |
418 | return undef; | |
419 | } | |
420 | ||
421 | my $desc = $key =~ /^unused\d+$/ ? $alldrive_fmt | |
422 | : $drivedesc_hash->{$key}->{format}; | |
423 | if (!$desc) { | |
424 | warn "invalid drive key: $key\n"; | |
425 | return undef; | |
426 | } | |
427 | my $res = eval { PVE::JSONSchema::parse_property_string($desc, $data) }; | |
428 | return undef if !$res; | |
429 | $res->{interface} = $interface; | |
430 | $res->{index} = $index; | |
431 | ||
432 | my $error = 0; | |
433 | foreach my $opt (qw(bps bps_rd bps_wr)) { | |
434 | if (my $bps = defined(delete $res->{$opt})) { | |
435 | if (defined($res->{"m$opt"})) { | |
436 | warn "both $opt and m$opt specified\n"; | |
437 | ++$error; | |
438 | next; | |
439 | } | |
440 | $res->{"m$opt"} = sprintf("%.3f", $bps / (1024*1024.0)); | |
441 | } | |
442 | } | |
443 | ||
444 | # can't use the schema's 'requires' because of the mbps* => bps* "transforming aliases" | |
445 | for my $requirement ( | |
446 | [mbps_max => 'mbps'], | |
447 | [mbps_rd_max => 'mbps_rd'], | |
448 | [mbps_wr_max => 'mbps_wr'], | |
449 | [miops_max => 'miops'], | |
450 | [miops_rd_max => 'miops_rd'], | |
451 | [miops_wr_max => 'miops_wr'], | |
452 | [bps_max_length => 'mbps_max'], | |
453 | [bps_rd_max_length => 'mbps_rd_max'], | |
454 | [bps_wr_max_length => 'mbps_wr_max'], | |
455 | [iops_max_length => 'iops_max'], | |
456 | [iops_rd_max_length => 'iops_rd_max'], | |
457 | [iops_wr_max_length => 'iops_wr_max']) { | |
458 | my ($option, $requires) = @$requirement; | |
459 | if ($res->{$option} && !$res->{$requires}) { | |
460 | warn "$option requires $requires\n"; | |
461 | ++$error; | |
462 | } | |
463 | } | |
464 | ||
465 | return undef if $error; | |
466 | ||
467 | return undef if $res->{mbps_rd} && $res->{mbps}; | |
468 | return undef if $res->{mbps_wr} && $res->{mbps}; | |
469 | return undef if $res->{iops_rd} && $res->{iops}; | |
470 | return undef if $res->{iops_wr} && $res->{iops}; | |
471 | ||
472 | if ($res->{media} && ($res->{media} eq 'cdrom')) { | |
473 | return undef if $res->{snapshot} || $res->{trans} || $res->{format}; | |
474 | return undef if $res->{heads} || $res->{secs} || $res->{cyls}; | |
475 | return undef if $res->{interface} eq 'virtio'; | |
476 | } | |
477 | ||
478 | if (my $size = $res->{size}) { | |
479 | return undef if !defined($res->{size} = PVE::JSONSchema::parse_size($size)); | |
480 | } | |
481 | ||
482 | return $res; | |
483 | } | |
484 | ||
485 | sub print_drive { | |
486 | my ($drive) = @_; | |
487 | my $skip = [ 'index', 'interface' ]; | |
488 | return PVE::JSONSchema::print_property_string($drive, $alldrive_fmt, $skip); | |
489 | } | |
490 | ||
491 | sub foreach_drive { | |
492 | my ($conf, $func, @param) = @_; | |
493 | ||
494 | foreach my $ds (valid_drive_names()) { | |
495 | next if !defined($conf->{$ds}); | |
496 | ||
497 | my $drive = parse_drive($ds, $conf->{$ds}); | |
498 | next if !$drive; | |
499 | ||
500 | &$func($ds, $drive, @param); | |
501 | } | |
502 | } | |
503 | ||
504 | sub foreach_volid { | |
505 | my ($conf, $func, @param) = @_; | |
506 | ||
507 | my $volhash = {}; | |
508 | ||
509 | my $test_volid = sub { | |
510 | my ($volid, $is_cdrom, $replicate, $shared, $snapname, $size) = @_; | |
511 | ||
512 | return if !$volid; | |
513 | ||
514 | $volhash->{$volid}->{cdrom} //= 1; | |
515 | $volhash->{$volid}->{cdrom} = 0 if !$is_cdrom; | |
516 | ||
517 | $volhash->{$volid}->{replicate} //= 0; | |
518 | $volhash->{$volid}->{replicate} = 1 if $replicate; | |
519 | ||
520 | $volhash->{$volid}->{shared} //= 0; | |
521 | $volhash->{$volid}->{shared} = 1 if $shared; | |
522 | ||
523 | $volhash->{$volid}->{referenced_in_config} //= 0; | |
524 | $volhash->{$volid}->{referenced_in_config} = 1 if !defined($snapname); | |
525 | ||
526 | $volhash->{$volid}->{referenced_in_snapshot}->{$snapname} = 1 | |
527 | if defined($snapname); | |
528 | $volhash->{$volid}->{size} = $size if $size; | |
529 | }; | |
530 | ||
531 | foreach_drive($conf, sub { | |
532 | my ($ds, $drive) = @_; | |
533 | $test_volid->($drive->{file}, drive_is_cdrom($drive), $drive->{replicate} // 1, $drive->{shared}, undef, $drive->{size}); | |
534 | }); | |
535 | ||
536 | foreach my $snapname (keys %{$conf->{snapshots}}) { | |
537 | my $snap = $conf->{snapshots}->{$snapname}; | |
538 | $test_volid->($snap->{vmstate}, 0, 1, $snapname); | |
539 | foreach_drive($snap, sub { | |
540 | my ($ds, $drive) = @_; | |
541 | $test_volid->($drive->{file}, drive_is_cdrom($drive), $drive->{replicate} // 1, $drive->{shared}, $snapname); | |
542 | }); | |
543 | } | |
544 | ||
545 | foreach my $volid (keys %$volhash) { | |
546 | &$func($volid, $volhash->{$volid}, @param); | |
547 | } | |
548 | } | |
549 | ||
550 | sub disksize { | |
551 | my ($storecfg, $conf) = @_; | |
552 | ||
553 | my $bootdisk = $conf->{bootdisk}; | |
554 | return undef if !$bootdisk; | |
555 | return undef if !is_valid_drivename($bootdisk); | |
556 | ||
557 | return undef if !$conf->{$bootdisk}; | |
558 | ||
559 | my $drive = parse_drive($bootdisk, $conf->{$bootdisk}); | |
560 | return undef if !defined($drive); | |
561 | ||
562 | return undef if drive_is_cdrom($drive); | |
563 | ||
564 | my $volid = $drive->{file}; | |
565 | return undef if !$volid; | |
566 | ||
567 | return $drive->{size}; | |
568 | } | |
569 | ||
570 | sub update_disksize { | |
571 | my ($drive, $volid_hash) = @_; | |
572 | ||
573 | my $volid = $drive->{file}; | |
574 | return undef if !defined($volid); | |
575 | ||
576 | my $oldsize = $drive->{size}; | |
577 | my $newsize = $volid_hash->{$volid}->{size}; | |
578 | ||
579 | if (defined($newsize) && defined($oldsize) && $newsize != $oldsize) { | |
580 | $drive->{size} = $newsize; | |
581 | ||
582 | my $old_fmt = PVE::JSONSchema::format_size($oldsize); | |
583 | my $new_fmt = PVE::JSONSchema::format_size($newsize); | |
584 | ||
585 | return wantarray ? ($drive, $old_fmt, $new_fmt) : $drive; | |
586 | } | |
587 | ||
588 | return undef; | |
589 | } | |
590 | ||
591 | sub is_volume_in_use { | |
592 | my ($storecfg, $conf, $skip_drive, $volid) = @_; | |
593 | ||
594 | my $path = PVE::Storage::path($storecfg, $volid); | |
595 | ||
596 | my $scan_config = sub { | |
597 | my ($cref, $snapname) = @_; | |
598 | ||
599 | foreach my $key (keys %$cref) { | |
600 | my $value = $cref->{$key}; | |
601 | if (is_valid_drivename($key)) { | |
602 | next if $skip_drive && $key eq $skip_drive; | |
603 | my $drive = parse_drive($key, $value); | |
604 | next if !$drive || !$drive->{file} || drive_is_cdrom($drive); | |
605 | return 1 if $volid eq $drive->{file}; | |
606 | if ($drive->{file} =~ m!^/!) { | |
607 | return 1 if $drive->{file} eq $path; | |
608 | } else { | |
609 | my ($storeid, $volname) = PVE::Storage::parse_volume_id($drive->{file}, 1); | |
610 | next if !$storeid; | |
611 | my $scfg = PVE::Storage::storage_config($storecfg, $storeid, 1); | |
612 | next if !$scfg; | |
613 | return 1 if $path eq PVE::Storage::path($storecfg, $drive->{file}, $snapname); | |
614 | } | |
615 | } | |
616 | } | |
617 | ||
618 | return 0; | |
619 | }; | |
620 | ||
621 | return 1 if &$scan_config($conf); | |
622 | ||
623 | undef $skip_drive; | |
624 | ||
625 | foreach my $snapname (keys %{$conf->{snapshots}}) { | |
626 | return 1 if &$scan_config($conf->{snapshots}->{$snapname}, $snapname); | |
627 | } | |
628 | ||
629 | return 0; | |
630 | } | |
631 | ||
632 | sub resolve_first_disk { | |
633 | my $conf = shift; | |
634 | my @disks = valid_drive_names(); | |
635 | my $firstdisk; | |
636 | foreach my $ds (reverse @disks) { | |
637 | next if !$conf->{$ds}; | |
638 | my $disk = parse_drive($ds, $conf->{$ds}); | |
639 | next if drive_is_cdrom($disk); | |
640 | $firstdisk = $ds; | |
641 | } | |
642 | return $firstdisk; | |
643 | } | |
644 | ||
645 | 1; |