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Commit | Line | Data |
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1dc01b9f DM |
1 | package PVE::Storage::Plugin; |
2 | ||
3 | use strict; | |
4 | use warnings; | |
074b2cb4 | 5 | |
7fc619d5 | 6 | use File::chdir; |
1dc01b9f | 7 | use File::Path; |
712e27f1 | 8 | use File::Basename; |
074b2cb4 | 9 | |
1dc01b9f DM |
10 | use PVE::Tools qw(run_command); |
11 | use PVE::JSONSchema qw(get_standard_option); | |
12 | use PVE::Cluster qw(cfs_register_file); | |
13 | ||
1dc01b9f DM |
14 | use base qw(PVE::SectionConfig); |
15 | ||
766cfd9a WB |
16 | our @COMMON_TAR_FLAGS = qw( |
17 | --one-file-system | |
18 | -p --sparse --numeric-owner --acls | |
19 | --xattrs --xattrs-include=user.* --xattrs-include=security.capability | |
20 | --warning=no-file-ignored --warning=no-xattr-write | |
21 | ); | |
22 | ||
d7875239 WL |
23 | our @SHARED_STORAGE = ( |
24 | 'iscsi', | |
25 | 'nfs', | |
26 | 'cifs', | |
27 | 'rbd', | |
e34ce144 | 28 | 'cephfs', |
d7875239 WL |
29 | 'sheepdog', |
30 | 'iscsidirect', | |
31 | 'glusterfs', | |
32 | 'zfs', | |
33 | 'drbd'); | |
34 | ||
c0535aa7 SI |
35 | our $MAX_VOLUMES_PER_GUEST = 1024; |
36 | ||
045ae0a7 | 37 | cfs_register_file ('storage.cfg', |
1dc01b9f DM |
38 | sub { __PACKAGE__->parse_config(@_); }, |
39 | sub { __PACKAGE__->write_config(@_); }); | |
40 | ||
35533c68 | 41 | |
1dc01b9f DM |
42 | my $defaultData = { |
43 | propertyList => { | |
44 | type => { description => "Storage type." }, | |
f7621c01 DM |
45 | storage => get_standard_option('pve-storage-id', |
46 | { completion => \&PVE::Storage::complete_storage }), | |
1dc01b9f DM |
47 | nodes => get_standard_option('pve-node-list', { optional => 1 }), |
48 | content => { | |
daccf21e FG |
49 | description => "Allowed content types.\n\nNOTE: the value " . |
50 | "'rootdir' is used for Containers, and value 'images' for VMs.\n", | |
1dc01b9f DM |
51 | type => 'string', format => 'pve-storage-content-list', |
52 | optional => 1, | |
98437f4c | 53 | completion => \&PVE::Storage::complete_content_type, |
1dc01b9f DM |
54 | }, |
55 | disable => { | |
56 | description => "Flag to disable the storage.", | |
57 | type => 'boolean', | |
58 | optional => 1, | |
59 | }, | |
60 | maxfiles => { | |
61 | description => "Maximal number of backup files per VM. Use '0' for unlimted.", | |
62 | type => 'integer', | |
63 | minimum => 0, | |
64 | optional => 1, | |
65 | }, | |
66 | shared => { | |
67 | description => "Mark storage as shared.", | |
68 | type => 'boolean', | |
69 | optional => 1, | |
70 | }, | |
045ae0a7 | 71 | 'format' => { |
daccf21e | 72 | description => "Default image format.", |
1dc01b9f DM |
73 | type => 'string', format => 'pve-storage-format', |
74 | optional => 1, | |
75 | }, | |
76 | }, | |
77 | }; | |
78 | ||
79 | sub content_hash_to_string { | |
80 | my $hash = shift; | |
81 | ||
82 | my @cta; | |
83 | foreach my $ct (keys %$hash) { | |
84 | push @cta, $ct if $hash->{$ct}; | |
045ae0a7 | 85 | } |
1dc01b9f DM |
86 | |
87 | return join(',', @cta); | |
88 | } | |
89 | ||
90 | sub valid_content_types { | |
91 | my ($type) = @_; | |
92 | ||
93 | my $def = $defaultData->{plugindata}->{$type}; | |
94 | ||
95 | return {} if !$def; | |
96 | ||
97 | return $def->{content}->[0]; | |
98 | } | |
99 | ||
100 | sub default_format { | |
101 | my ($scfg) = @_; | |
102 | ||
103 | my $type = $scfg->{type}; | |
104 | my $def = $defaultData->{plugindata}->{$type}; | |
045ae0a7 | 105 | |
1dc01b9f DM |
106 | my $def_format = 'raw'; |
107 | my $valid_formats = [ $def_format ]; | |
108 | ||
109 | if (defined($def->{format})) { | |
110 | $def_format = $scfg->{format} || $def->{format}->[1]; | |
111 | $valid_formats = [ sort keys %{$def->{format}->[0]} ]; | |
112 | } | |
045ae0a7 | 113 | |
1dc01b9f DM |
114 | return wantarray ? ($def_format, $valid_formats) : $def_format; |
115 | } | |
116 | ||
117 | PVE::JSONSchema::register_format('pve-storage-path', \&verify_path); | |
118 | sub verify_path { | |
119 | my ($path, $noerr) = @_; | |
120 | ||
121 | # fixme: exclude more shell meta characters? | |
122 | # we need absolute paths | |
123 | if ($path !~ m|^/[^;\(\)]+|) { | |
124 | return undef if $noerr; | |
125 | die "value does not look like a valid absolute path\n"; | |
126 | } | |
127 | return $path; | |
128 | } | |
129 | ||
130 | PVE::JSONSchema::register_format('pve-storage-server', \&verify_server); | |
131 | sub verify_server { | |
132 | my ($server, $noerr) = @_; | |
133 | ||
6bf617a9 WB |
134 | if (!(PVE::JSONSchema::pve_verify_ip($server, 1) || |
135 | PVE::JSONSchema::pve_verify_dns_name($server, 1))) | |
136 | { | |
1dc01b9f DM |
137 | return undef if $noerr; |
138 | die "value does not look like a valid server name or IP address\n"; | |
139 | } | |
140 | return $server; | |
141 | } | |
142 | ||
5dca5c7c DM |
143 | PVE::JSONSchema::register_format('pve-storage-vgname', \&parse_lvm_name); |
144 | sub parse_lvm_name { | |
145 | my ($name, $noerr) = @_; | |
146 | ||
147 | if ($name !~ m/^[a-z][a-z0-9\-\_\.]*[a-z0-9]$/i) { | |
148 | return undef if $noerr; | |
149 | die "lvm name '$name' contains illegal characters\n"; | |
150 | } | |
151 | ||
152 | return $name; | |
153 | } | |
154 | ||
1dc01b9f DM |
155 | # fixme: do we need this |
156 | #PVE::JSONSchema::register_format('pve-storage-portal', \&verify_portal); | |
157 | #sub verify_portal { | |
158 | # my ($portal, $noerr) = @_; | |
159 | # | |
160 | # # IP with optional port | |
161 | # if ($portal !~ m/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}(:\d+)?$/) { | |
162 | # return undef if $noerr; | |
163 | # die "value does not look like a valid portal address\n"; | |
164 | # } | |
165 | # return $portal; | |
166 | #} | |
167 | ||
168 | PVE::JSONSchema::register_format('pve-storage-portal-dns', \&verify_portal_dns); | |
169 | sub verify_portal_dns { | |
170 | my ($portal, $noerr) = @_; | |
171 | ||
172 | # IP or DNS name with optional port | |
1689e627 | 173 | if (!PVE::Tools::parse_host_and_port($portal)) { |
1dc01b9f DM |
174 | return undef if $noerr; |
175 | die "value does not look like a valid portal address\n"; | |
176 | } | |
177 | return $portal; | |
178 | } | |
179 | ||
180 | PVE::JSONSchema::register_format('pve-storage-content', \&verify_content); | |
181 | sub verify_content { | |
182 | my ($ct, $noerr) = @_; | |
183 | ||
184 | my $valid_content = valid_content_types('dir'); # dir includes all types | |
045ae0a7 | 185 | |
1dc01b9f DM |
186 | if (!$valid_content->{$ct}) { |
187 | return undef if $noerr; | |
188 | die "invalid content type '$ct'\n"; | |
189 | } | |
190 | ||
191 | return $ct; | |
192 | } | |
193 | ||
194 | PVE::JSONSchema::register_format('pve-storage-format', \&verify_format); | |
195 | sub verify_format { | |
196 | my ($fmt, $noerr) = @_; | |
197 | ||
35533c68 | 198 | if ($fmt !~ m/(raw|qcow2|vmdk|subvol)/) { |
1dc01b9f DM |
199 | return undef if $noerr; |
200 | die "invalid format '$fmt'\n"; | |
201 | } | |
202 | ||
203 | return $fmt; | |
204 | } | |
205 | ||
206 | PVE::JSONSchema::register_format('pve-storage-options', \&verify_options); | |
207 | sub verify_options { | |
208 | my ($value, $noerr) = @_; | |
209 | ||
210 | # mount options (see man fstab) | |
211 | if ($value !~ m/^\S+$/) { | |
212 | return undef if $noerr; | |
213 | die "invalid options '$value'\n"; | |
214 | } | |
215 | ||
216 | return $value; | |
217 | } | |
218 | ||
a7f3d909 DM |
219 | PVE::JSONSchema::register_format('pve-volume-id', \&parse_volume_id); |
220 | sub parse_volume_id { | |
221 | my ($volid, $noerr) = @_; | |
222 | ||
223 | if ($volid =~ m/^([a-z][a-z0-9\-\_\.]*[a-z0-9]):(.+)$/i) { | |
224 | return wantarray ? ($1, $2) : $1; | |
225 | } | |
226 | return undef if $noerr; | |
227 | die "unable to parse volume ID '$volid'\n"; | |
228 | } | |
229 | ||
1dc01b9f DM |
230 | |
231 | sub private { | |
232 | return $defaultData; | |
233 | } | |
234 | ||
235 | sub parse_section_header { | |
236 | my ($class, $line) = @_; | |
237 | ||
238 | if ($line =~ m/^(\S+):\s*(\S+)\s*$/) { | |
239 | my ($type, $storeid) = (lc($1), $2); | |
240 | my $errmsg = undef; # set if you want to skip whole section | |
241 | eval { PVE::JSONSchema::parse_storage_id($storeid); }; | |
242 | $errmsg = $@ if $@; | |
243 | my $config = {}; # to return additional attributes | |
244 | return ($type, $storeid, $errmsg, $config); | |
245 | } | |
246 | return undef; | |
247 | } | |
248 | ||
249 | sub decode_value { | |
250 | my ($class, $type, $key, $value) = @_; | |
251 | ||
252 | my $def = $defaultData->{plugindata}->{$type}; | |
253 | ||
254 | if ($key eq 'content') { | |
255 | my $valid_content = $def->{content}->[0]; | |
045ae0a7 | 256 | |
1dc01b9f DM |
257 | my $res = {}; |
258 | ||
259 | foreach my $c (PVE::Tools::split_list($value)) { | |
260 | if (!$valid_content->{$c}) { | |
703de49e WL |
261 | warn "storage does not support content type '$c'\n"; |
262 | next; | |
1dc01b9f DM |
263 | } |
264 | $res->{$c} = 1; | |
045ae0a7 | 265 | } |
1dc01b9f DM |
266 | |
267 | if ($res->{none} && scalar (keys %$res) > 1) { | |
268 | die "unable to combine 'none' with other content types\n"; | |
269 | } | |
270 | ||
271 | return $res; | |
272 | } elsif ($key eq 'format') { | |
273 | my $valid_formats = $def->{format}->[0]; | |
274 | ||
275 | if (!$valid_formats->{$value}) { | |
703de49e WL |
276 | warn "storage does not support format '$value'\n"; |
277 | next; | |
1dc01b9f DM |
278 | } |
279 | ||
280 | return $value; | |
281 | } elsif ($key eq 'nodes') { | |
282 | my $res = {}; | |
283 | ||
284 | foreach my $node (PVE::Tools::split_list($value)) { | |
285 | if (PVE::JSONSchema::pve_verify_node_name($node)) { | |
286 | $res->{$node} = 1; | |
287 | } | |
288 | } | |
289 | ||
290 | # fixme: | |
291 | # no node restrictions for local storage | |
292 | #if ($storeid && $storeid eq 'local' && scalar(keys(%$res))) { | |
293 | # die "storage '$storeid' does not allow node restrictions\n"; | |
294 | #} | |
295 | ||
296 | return $res; | |
297 | } | |
298 | ||
299 | return $value; | |
300 | } | |
301 | ||
302 | sub encode_value { | |
303 | my ($class, $type, $key, $value) = @_; | |
304 | ||
305 | if ($key eq 'nodes') { | |
306 | return join(',', keys(%$value)); | |
307 | } elsif ($key eq 'content') { | |
308 | my $res = content_hash_to_string($value) || 'none'; | |
309 | return $res; | |
310 | } | |
311 | ||
312 | return $value; | |
313 | } | |
314 | ||
315 | sub parse_config { | |
316 | my ($class, $filename, $raw) = @_; | |
317 | ||
318 | my $cfg = $class->SUPER::parse_config($filename, $raw); | |
319 | my $ids = $cfg->{ids}; | |
320 | ||
321 | # make sure we have a reasonable 'local:' storage | |
dc6ff39f | 322 | # we want 'local' to be always the same 'type' (on all cluster nodes) |
1dc01b9f DM |
323 | if (!$ids->{local} || $ids->{local}->{type} ne 'dir' || |
324 | ($ids->{local}->{path} && $ids->{local}->{path} ne '/var/lib/vz')) { | |
325 | $ids->{local} = { | |
326 | type => 'dir', | |
327 | priority => 0, # force first entry | |
328 | path => '/var/lib/vz', | |
329 | maxfiles => 0, | |
d1eb35ea | 330 | content => { images => 1, rootdir => 1, vztmpl => 1, iso => 1, snippets => 1}, |
1dc01b9f DM |
331 | }; |
332 | } | |
045ae0a7 | 333 | |
1dc01b9f DM |
334 | # make sure we have a path |
335 | $ids->{local}->{path} = '/var/lib/vz' if !$ids->{local}->{path}; | |
336 | ||
337 | # remove node restrictions for local storage | |
338 | delete($ids->{local}->{nodes}); | |
339 | ||
340 | foreach my $storeid (keys %$ids) { | |
341 | my $d = $ids->{$storeid}; | |
342 | my $type = $d->{type}; | |
343 | ||
344 | my $def = $defaultData->{plugindata}->{$type}; | |
345 | ||
346 | if ($def->{content}) { | |
347 | $d->{content} = $def->{content}->[1] if !$d->{content}; | |
348 | } | |
d7875239 | 349 | if (grep { $_ eq $type } @SHARED_STORAGE) { |
1dc01b9f DM |
350 | $d->{shared} = 1; |
351 | } | |
352 | } | |
353 | ||
354 | return $cfg; | |
355 | } | |
356 | ||
357 | # Storage implementation | |
358 | ||
3932ca0d TL |
359 | # called during addition of storage (before the new storage config got written) |
360 | # die to abort additon if there are (grave) problems | |
361 | # NOTE: runs in a storage config *locked* context | |
362 | sub on_add_hook { | |
363 | my ($class, $storeid, $scfg, %param) = @_; | |
364 | ||
365 | # do nothing by default | |
366 | } | |
367 | ||
368 | # called during deletion of storage (before the new storage config got written) | |
369 | # and if the activate check on addition fails, to cleanup all storage traces | |
370 | # which on_add_hook may have created. | |
371 | # die to abort deletion if there are (very grave) problems | |
372 | # NOTE: runs in a storage config *locked* context | |
373 | sub on_delete_hook { | |
374 | my ($class, $storeid, $scfg) = @_; | |
375 | ||
376 | # do nothing by default | |
377 | } | |
378 | ||
1dc01b9f DM |
379 | sub cluster_lock_storage { |
380 | my ($class, $storeid, $shared, $timeout, $func, @param) = @_; | |
381 | ||
382 | my $res; | |
383 | if (!$shared) { | |
384 | my $lockid = "pve-storage-$storeid"; | |
385 | my $lockdir = "/var/lock/pve-manager"; | |
386 | mkdir $lockdir; | |
045ae0a7 | 387 | $res = PVE::Tools::lock_file("$lockdir/$lockid", $timeout, $func, @param); |
1dc01b9f DM |
388 | die $@ if $@; |
389 | } else { | |
390 | $res = PVE::Cluster::cfs_lock_storage($storeid, $timeout, $func, @param); | |
391 | die $@ if $@; | |
045ae0a7 | 392 | } |
1dc01b9f DM |
393 | return $res; |
394 | } | |
395 | ||
396 | sub parse_name_dir { | |
397 | my $name = shift; | |
398 | ||
35533c68 DM |
399 | if ($name =~ m!^((base-)?[^/\s]+\.(raw|qcow2|vmdk|subvol))$!) { |
400 | return ($1, $3, $2); # (name, format, isBase) | |
1dc01b9f DM |
401 | } |
402 | ||
403 | die "unable to parse volume filename '$name'\n"; | |
404 | } | |
405 | ||
406 | sub parse_volname { | |
407 | my ($class, $volname) = @_; | |
408 | ||
2502b33b DM |
409 | if ($volname =~ m!^(\d+)/(\S+)/(\d+)/(\S+)$!) { |
410 | my ($basedvmid, $basename) = ($1, $2); | |
411 | parse_name_dir($basename); | |
412 | my ($vmid, $name) = ($3, $4); | |
35533c68 DM |
413 | my (undef, $format, $isBase) = parse_name_dir($name); |
414 | return ('images', $name, $vmid, $basename, $basedvmid, $isBase, $format); | |
2502b33b | 415 | } elsif ($volname =~ m!^(\d+)/(\S+)$!) { |
1dc01b9f | 416 | my ($vmid, $name) = ($1, $2); |
35533c68 DM |
417 | my (undef, $format, $isBase) = parse_name_dir($name); |
418 | return ('images', $name, $vmid, undef, undef, $isBase, $format); | |
1dc01b9f DM |
419 | } elsif ($volname =~ m!^iso/([^/]+\.[Ii][Ss][Oo])$!) { |
420 | return ('iso', $1); | |
13d2cb79 | 421 | } elsif ($volname =~ m!^vztmpl/([^/]+\.tar\.[gx]z)$!) { |
1dc01b9f DM |
422 | return ('vztmpl', $1); |
423 | } elsif ($volname =~ m!^rootdir/(\d+)$!) { | |
424 | return ('rootdir', $1, $1); | |
a22854e5 | 425 | } elsif ($volname =~ m!^backup/([^/]+(\.(tar|tar\.gz|tar\.lzo|tgz|vma|vma\.gz|vma\.lzo)))$!) { |
1dc01b9f | 426 | my $fn = $1; |
4cb6e060 | 427 | if ($fn =~ m/^vzdump-(openvz|lxc|qemu)-(\d+)-.+/) { |
1dc01b9f DM |
428 | return ('backup', $fn, $2); |
429 | } | |
430 | return ('backup', $fn); | |
7c7ae12f DC |
431 | } elsif ($volname =~ m!^snippets/([^/]+)$!) { |
432 | return ('snippets', $1); | |
1dc01b9f DM |
433 | } |
434 | ||
435 | die "unable to parse directory volume name '$volname'\n"; | |
436 | } | |
437 | ||
045ae0a7 | 438 | my $vtype_subdirs = { |
1dc01b9f DM |
439 | images => 'images', |
440 | rootdir => 'private', | |
441 | iso => 'template/iso', | |
442 | vztmpl => 'template/cache', | |
443 | backup => 'dump', | |
7c7ae12f | 444 | snippets => 'snippets', |
1dc01b9f DM |
445 | }; |
446 | ||
447 | sub get_subdir { | |
448 | my ($class, $scfg, $vtype) = @_; | |
449 | ||
450 | my $path = $scfg->{path}; | |
451 | ||
452 | die "storage definintion has no path\n" if !$path; | |
453 | ||
454 | my $subdir = $vtype_subdirs->{$vtype}; | |
455 | ||
456 | die "unknown vtype '$vtype'\n" if !defined($subdir); | |
457 | ||
045ae0a7 | 458 | return "$path/$subdir"; |
1dc01b9f DM |
459 | } |
460 | ||
08480ce7 | 461 | sub filesystem_path { |
e67069eb | 462 | my ($class, $scfg, $volname, $snapname) = @_; |
1dc01b9f | 463 | |
e67069eb DM |
464 | my ($vtype, $name, $vmid, undef, undef, $isBase, $format) = |
465 | $class->parse_volname($volname); | |
466 | ||
467 | # Note: qcow2/qed has internal snapshot, so path is always | |
468 | # the same (with or without snapshot => same file). | |
469 | die "can't snapshot this image format\n" | |
470 | if defined($snapname) && $format !~ m/^(qcow2|qed)$/; | |
1dc01b9f DM |
471 | |
472 | my $dir = $class->get_subdir($scfg, $vtype); | |
473 | ||
474 | $dir .= "/$vmid" if $vtype eq 'images'; | |
475 | ||
476 | my $path = "$dir/$name"; | |
477 | ||
478 | return wantarray ? ($path, $vmid, $vtype) : $path; | |
479 | } | |
480 | ||
08480ce7 | 481 | sub path { |
e67069eb | 482 | my ($class, $scfg, $volname, $storeid, $snapname) = @_; |
08480ce7 | 483 | |
e67069eb | 484 | return $class->filesystem_path($scfg, $volname, $snapname); |
08480ce7 DM |
485 | } |
486 | ||
2502b33b DM |
487 | sub create_base { |
488 | my ($class, $storeid, $scfg, $volname) = @_; | |
489 | ||
490 | # this only works for file based storage types | |
5510f5c9 | 491 | die "storage definition has no path\n" if !$scfg->{path}; |
2502b33b | 492 | |
35533c68 | 493 | my ($vtype, $name, $vmid, $basename, $basevmid, $isBase, $format) = |
2502b33b DM |
494 | $class->parse_volname($volname); |
495 | ||
496 | die "create_base on wrong vtype '$vtype'\n" if $vtype ne 'images'; | |
497 | ||
498 | die "create_base not possible with base image\n" if $isBase; | |
499 | ||
08480ce7 | 500 | my $path = $class->filesystem_path($scfg, $volname); |
2502b33b | 501 | |
35533c68 DM |
502 | my ($size, undef, $used, $parent) = file_size_info($path); |
503 | die "file_size_info on '$volname' failed\n" if !($format && defined($size)); | |
2502b33b DM |
504 | |
505 | die "volname '$volname' contains wrong information about parent\n" | |
506 | if $basename && (!$parent || $parent ne "../$basevmid/$basename"); | |
507 | ||
508 | my $newname = $name; | |
509 | $newname =~ s/^vm-/base-/; | |
510 | ||
511 | my $newvolname = $basename ? "$basevmid/$basename/$vmid/$newname" : | |
512 | "$vmid/$newname"; | |
513 | ||
08480ce7 | 514 | my $newpath = $class->filesystem_path($scfg, $newvolname); |
2502b33b DM |
515 | |
516 | die "file '$newpath' already exists\n" if -f $newpath; | |
517 | ||
1a3459ac | 518 | rename($path, $newpath) || |
2502b33b DM |
519 | die "rename '$path' to '$newpath' failed - $!\n"; |
520 | ||
c803c396 | 521 | # We try to protect base volume |
2502b33b | 522 | |
c803c396 DM |
523 | chmod(0444, $newpath); # nobody should write anything |
524 | ||
525 | # also try to set immutable flag | |
526 | eval { run_command(['/usr/bin/chattr', '+i', $newpath]); }; | |
527 | warn $@ if $@; | |
1a3459ac | 528 | |
2502b33b DM |
529 | return $newvolname; |
530 | } | |
531 | ||
83a40b8d TL |
532 | my $get_vm_disk_number = sub { |
533 | my ($disk_name, $scfg, $vmid, $suffix) = @_; | |
345f8981 | 534 | |
dd1fa860 TL |
535 | my $disk_regex = qr/(vm|base)-$vmid-disk-(\d+)$suffix/; |
536 | ||
345f8981 | 537 | my $type = $scfg->{type}; |
f4cc2c4a | 538 | my $def = { %{$defaultData->{plugindata}->{$type}} }; |
345f8981 | 539 | |
dd1fa860 TL |
540 | my $valid = $def->{format}[0]; |
541 | if ($valid->{subvol}) { | |
542 | $disk_regex = qr/(vm|base|subvol|basevol)-$vmid-disk-(\d+)/; | |
543 | } | |
345f8981 | 544 | |
83a40b8d TL |
545 | if ($disk_name =~ m/$disk_regex/) { |
546 | return $2; | |
345f8981 | 547 | } |
83a40b8d TL |
548 | |
549 | return undef; | |
550 | }; | |
345f8981 SI |
551 | |
552 | sub get_next_vm_diskname { | |
553 | my ($disk_list, $storeid, $vmid, $fmt, $scfg, $add_fmt_suffix) = @_; | |
554 | ||
345f8981 SI |
555 | $fmt //= ''; |
556 | my $prefix = ($fmt eq 'subvol') ? 'subvol' : 'vm'; | |
557 | my $suffix = $add_fmt_suffix ? ".$fmt" : ''; | |
558 | ||
83a40b8d TL |
559 | my $disk_ids = {}; |
560 | foreach my $disk (@$disk_list) { | |
561 | my $disknum = $get_vm_disk_number->($disk, $scfg, $vmid, $suffix); | |
562 | $disk_ids->{$disknum} = 1 if defined($disknum); | |
563 | } | |
564 | ||
59fa9fd6 | 565 | for (my $i = 0; $i < $MAX_VOLUMES_PER_GUEST; $i++) { |
345f8981 SI |
566 | if (!$disk_ids->{$i}) { |
567 | return "$prefix-$vmid-disk-$i$suffix"; | |
568 | } | |
569 | } | |
570 | ||
571 | die "unable to allocate an image name for VM $vmid in storage '$storeid'\n" | |
572 | } | |
573 | ||
2502b33b | 574 | my $find_free_diskname = sub { |
c4a29df4 | 575 | my ($imgdir, $vmid, $fmt, $scfg) = @_; |
2502b33b | 576 | |
c4a29df4 SI |
577 | my $disk_list = []; |
578 | ||
579 | if (defined(my $dh = IO::Dir->new($imgdir))) { | |
580 | @$disk_list = $dh->read(); | |
581 | $dh->close(); | |
2502b33b DM |
582 | } |
583 | ||
c4a29df4 | 584 | return get_next_vm_diskname($disk_list, $imgdir, $vmid, $fmt, $scfg, 1); |
2502b33b DM |
585 | }; |
586 | ||
587 | sub clone_image { | |
f236eaf8 | 588 | my ($class, $scfg, $storeid, $volname, $vmid, $snap) = @_; |
2502b33b DM |
589 | |
590 | # this only works for file based storage types | |
591 | die "storage definintion has no path\n" if !$scfg->{path}; | |
592 | ||
35533c68 | 593 | my ($vtype, $basename, $basevmid, undef, undef, $isBase, $format) = |
2502b33b DM |
594 | $class->parse_volname($volname); |
595 | ||
596 | die "clone_image on wrong vtype '$vtype'\n" if $vtype ne 'images'; | |
597 | ||
f236eaf8 SP |
598 | die "this storage type does not support clone_image on snapshot\n" if $snap; |
599 | ||
35533c68 DM |
600 | die "this storage type does not support clone_image on subvolumes\n" if $format eq 'subvol'; |
601 | ||
f236eaf8 | 602 | die "clone_image only works on base images\n" if !$isBase; |
1dc01b9f DM |
603 | |
604 | my $imagedir = $class->get_subdir($scfg, 'images'); | |
605 | $imagedir .= "/$vmid"; | |
606 | ||
607 | mkpath $imagedir; | |
608 | ||
c4a29df4 | 609 | my $name = $find_free_diskname->($imagedir, $vmid, "qcow2", $scfg); |
2502b33b DM |
610 | |
611 | warn "clone $volname: $vtype, $name, $vmid to $name (base=../$basevmid/$basename)\n"; | |
612 | ||
613 | my $newvol = "$basevmid/$basename/$vmid/$name"; | |
614 | ||
08480ce7 | 615 | my $path = $class->filesystem_path($scfg, $newvol); |
2502b33b | 616 | |
1a3459ac | 617 | # Note: we use relative paths, so we need to call chdir before qemu-img |
2502b33b | 618 | eval { |
7fc619d5 | 619 | local $CWD = $imagedir; |
2502b33b | 620 | |
1a3459ac | 621 | my $cmd = ['/usr/bin/qemu-img', 'create', '-b', "../$basevmid/$basename", |
2502b33b | 622 | '-f', 'qcow2', $path]; |
1a3459ac | 623 | |
2502b33b DM |
624 | run_command($cmd); |
625 | }; | |
626 | my $err = $@; | |
1dc01b9f | 627 | |
2502b33b DM |
628 | die $err if $err; |
629 | ||
630 | return $newvol; | |
631 | } | |
632 | ||
633 | sub alloc_image { | |
634 | my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_; | |
635 | ||
636 | my $imagedir = $class->get_subdir($scfg, 'images'); | |
637 | $imagedir .= "/$vmid"; | |
638 | ||
639 | mkpath $imagedir; | |
640 | ||
c4a29df4 | 641 | $name = $find_free_diskname->($imagedir, $vmid, $fmt, $scfg) if !$name; |
1a3459ac | 642 | |
1dc01b9f DM |
643 | my (undef, $tmpfmt) = parse_name_dir($name); |
644 | ||
045ae0a7 | 645 | die "illegal name '$name' - wrong extension for format ('$tmpfmt != '$fmt')\n" |
1dc01b9f DM |
646 | if $tmpfmt ne $fmt; |
647 | ||
648 | my $path = "$imagedir/$name"; | |
649 | ||
650 | die "disk image '$path' already exists\n" if -e $path; | |
651 | ||
35533c68 DM |
652 | if ($fmt eq 'subvol') { |
653 | # only allow this if size = 0, so that user knows what he is doing | |
654 | die "storage does not support subvol quotas\n" if $size != 0; | |
655 | ||
1f5734bb WB |
656 | my $old_umask = umask(0022); |
657 | my $err; | |
658 | mkdir($path) or $err = "unable to create subvol '$path' - $!\n"; | |
659 | umask $old_umask; | |
660 | die $err if $err; | |
35533c68 DM |
661 | } else { |
662 | my $cmd = ['/usr/bin/qemu-img', 'create']; | |
045ae0a7 | 663 | |
35533c68 DM |
664 | push @$cmd, '-o', 'preallocation=metadata' if $fmt eq 'qcow2'; |
665 | ||
666 | push @$cmd, '-f', $fmt, $path, "${size}K"; | |
1dc01b9f | 667 | |
a8ec2f02 CE |
668 | eval { run_command($cmd, errmsg => "unable to create image"); }; |
669 | if ($@) { | |
670 | unlink $path; | |
671 | rmdir $imagedir; | |
672 | die "$@"; | |
673 | } | |
35533c68 DM |
674 | } |
675 | ||
1dc01b9f DM |
676 | return "$vmid/$name"; |
677 | } | |
678 | ||
679 | sub free_image { | |
35533c68 | 680 | my ($class, $storeid, $scfg, $volname, $isBase, $format) = @_; |
1dc01b9f | 681 | |
08480ce7 | 682 | my $path = $class->filesystem_path($scfg, $volname); |
1dc01b9f | 683 | |
f5451f28 DC |
684 | if ($isBase) { |
685 | # try to remove immutable flag | |
686 | eval { run_command(['/usr/bin/chattr', '-i', $path]); }; | |
687 | warn $@ if $@; | |
688 | } | |
689 | ||
4a7d2222 | 690 | if (defined($format) && ($format eq 'subvol')) { |
35533c68 DM |
691 | File::Path::remove_tree($path); |
692 | } else { | |
693 | ||
694 | if (! -f $path) { | |
695 | warn "disk image '$path' does not exists\n"; | |
696 | return undef; | |
697 | } | |
1dc01b9f | 698 | |
35533c68 DM |
699 | unlink($path) || die "unlink '$path' failed - $!\n"; |
700 | } | |
712e27f1 CE |
701 | |
702 | # try to cleanup directory to not clutter storage with empty $vmid dirs if | |
703 | # all images from a guest got deleted | |
704 | my $dir = dirname($path); | |
705 | rmdir($dir); | |
35533c68 | 706 | |
1dc01b9f DM |
707 | return undef; |
708 | } | |
709 | ||
710 | sub file_size_info { | |
711 | my ($filename, $timeout) = @_; | |
712 | ||
35533c68 DM |
713 | if (-d $filename) { |
714 | return wantarray ? (0, 'subvol', 0, undef) : 1; | |
715 | } | |
716 | ||
1dc01b9f DM |
717 | my $cmd = ['/usr/bin/qemu-img', 'info', $filename]; |
718 | ||
719 | my $format; | |
73b7847e | 720 | my $parent; |
1dc01b9f DM |
721 | my $size = 0; |
722 | my $used = 0; | |
723 | ||
724 | eval { | |
725 | run_command($cmd, timeout => $timeout, outfunc => sub { | |
726 | my $line = shift; | |
1dc01b9f DM |
727 | if ($line =~ m/^file format:\s+(\S+)\s*$/) { |
728 | $format = $1; | |
73b7847e AD |
729 | } elsif ($line =~ m/^backing file:\s(\S+)\s/) { |
730 | $parent = $1; | |
1dc01b9f DM |
731 | } elsif ($line =~ m/^virtual size:\s\S+\s+\((\d+)\s+bytes\)$/) { |
732 | $size = int($1); | |
733 | } elsif ($line =~ m/^disk size:\s+(\d+(.\d+)?)([KMGT])\s*$/) { | |
734 | $used = $1; | |
735 | my $u = $3; | |
736 | ||
737 | $used *= 1024 if $u eq 'K'; | |
738 | $used *= (1024*1024) if $u eq 'M'; | |
739 | $used *= (1024*1024*1024) if $u eq 'G'; | |
740 | $used *= (1024*1024*1024*1024) if $u eq 'T'; | |
741 | ||
742 | $used = int($used); | |
743 | } | |
744 | }); | |
745 | }; | |
746 | ||
73b7847e | 747 | return wantarray ? ($size, $format, $used, $parent) : $size; |
1dc01b9f DM |
748 | } |
749 | ||
e47e548e AD |
750 | sub volume_size_info { |
751 | my ($class, $scfg, $storeid, $volname, $timeout) = @_; | |
08480ce7 | 752 | my $path = $class->filesystem_path($scfg, $volname); |
e47e548e AD |
753 | return file_size_info($path, $timeout); |
754 | ||
755 | } | |
756 | ||
81f5058c AD |
757 | sub volume_resize { |
758 | my ($class, $scfg, $storeid, $volname, $size, $running) = @_; | |
759 | ||
6d788031 | 760 | die "can't resize this image format\n" if $volname !~ m/\.(raw|qcow2)$/; |
81f5058c AD |
761 | |
762 | return 1 if $running; | |
763 | ||
08480ce7 | 764 | my $path = $class->filesystem_path($scfg, $volname); |
81f5058c | 765 | |
0589e5f9 WL |
766 | my $format = ($class->parse_volname($volname))[6]; |
767 | ||
768 | my $cmd = ['/usr/bin/qemu-img', 'resize', '-f', $format, $path , $size]; | |
81f5058c | 769 | |
1059cc99 | 770 | run_command($cmd, timeout => 10); |
81f5058c AD |
771 | |
772 | return undef; | |
773 | } | |
774 | ||
7dcb0697 | 775 | sub volume_snapshot { |
f5640e7d | 776 | my ($class, $scfg, $storeid, $volname, $snap) = @_; |
7dcb0697 | 777 | |
6d788031 | 778 | die "can't snapshot this image format\n" if $volname !~ m/\.(qcow2|qed)$/; |
7dcb0697 | 779 | |
08480ce7 | 780 | my $path = $class->filesystem_path($scfg, $volname); |
7dcb0697 AD |
781 | |
782 | my $cmd = ['/usr/bin/qemu-img', 'snapshot','-c', $snap, $path]; | |
783 | ||
3f13fd7d | 784 | run_command($cmd); |
7dcb0697 AD |
785 | |
786 | return undef; | |
787 | } | |
788 | ||
1597f1f9 WL |
789 | sub volume_rollback_is_possible { |
790 | my ($class, $scfg, $storeid, $volname, $snap) = @_; | |
791 | ||
792 | return 1; | |
793 | } | |
794 | ||
41dffa85 AD |
795 | sub volume_snapshot_rollback { |
796 | my ($class, $scfg, $storeid, $volname, $snap) = @_; | |
797 | ||
6d788031 | 798 | die "can't rollback snapshot this image format\n" if $volname !~ m/\.(qcow2|qed)$/; |
41dffa85 | 799 | |
08480ce7 | 800 | my $path = $class->filesystem_path($scfg, $volname); |
41dffa85 AD |
801 | |
802 | my $cmd = ['/usr/bin/qemu-img', 'snapshot','-a', $snap, $path]; | |
803 | ||
3f13fd7d | 804 | run_command($cmd); |
41dffa85 AD |
805 | |
806 | return undef; | |
807 | } | |
808 | ||
6000a061 AD |
809 | sub volume_snapshot_delete { |
810 | my ($class, $scfg, $storeid, $volname, $snap, $running) = @_; | |
811 | ||
6d788031 | 812 | die "can't delete snapshot for this image format\n" if $volname !~ m/\.(qcow2|qed)$/; |
6000a061 AD |
813 | |
814 | return 1 if $running; | |
815 | ||
08480ce7 | 816 | my $path = $class->filesystem_path($scfg, $volname); |
6000a061 | 817 | |
399581a2 WB |
818 | $class->deactivate_volume($storeid, $scfg, $volname, $snap, {}); |
819 | ||
6000a061 AD |
820 | my $cmd = ['/usr/bin/qemu-img', 'snapshot','-d', $snap, $path]; |
821 | ||
3f13fd7d | 822 | run_command($cmd); |
6000a061 AD |
823 | |
824 | return undef; | |
825 | } | |
826 | ||
7118dd91 DM |
827 | sub storage_can_replicate { |
828 | my ($class, $scfg, $storeid, $format) = @_; | |
829 | ||
830 | return 0; | |
831 | } | |
832 | ||
f884fe11 AD |
833 | sub volume_has_feature { |
834 | my ($class, $scfg, $feature, $storeid, $volname, $snapname, $running) = @_; | |
835 | ||
836 | my $features = { | |
5649ccfe AD |
837 | snapshot => { current => { qcow2 => 1}, snap => { qcow2 => 1} }, |
838 | clone => { base => {qcow2 => 1, raw => 1, vmdk => 1} }, | |
35533c68 | 839 | template => { current => {qcow2 => 1, raw => 1, vmdk => 1, subvol => 1} }, |
5649ccfe | 840 | copy => { base => {qcow2 => 1, raw => 1, vmdk => 1}, |
22b8cf97 AD |
841 | current => {qcow2 => 1, raw => 1, vmdk => 1}, |
842 | snap => {qcow2 => 1} }, | |
baafddbd DC |
843 | sparseinit => { base => {qcow2 => 1, raw => 1, vmdk => 1}, |
844 | current => {qcow2 => 1, raw => 1, vmdk => 1} }, | |
f884fe11 AD |
845 | }; |
846 | ||
35533c68 | 847 | my ($vtype, $name, $vmid, $basename, $basevmid, $isBase, $format) = |
dc4f2cb3 AD |
848 | $class->parse_volname($volname); |
849 | ||
dc4f2cb3 AD |
850 | my $key = undef; |
851 | if($snapname){ | |
2c5a7097 | 852 | $key = 'snap'; |
dc4f2cb3 AD |
853 | }else{ |
854 | $key = $isBase ? 'base' : 'current'; | |
f884fe11 | 855 | } |
dc4f2cb3 AD |
856 | |
857 | return 1 if defined($features->{$feature}->{$key}->{$format}); | |
858 | ||
f884fe11 AD |
859 | return undef; |
860 | } | |
861 | ||
1dc01b9f DM |
862 | sub list_images { |
863 | my ($class, $storeid, $scfg, $vmid, $vollist, $cache) = @_; | |
864 | ||
865 | my $imagedir = $class->get_subdir($scfg, 'images'); | |
866 | ||
867 | my ($defFmt, $vaidFmts) = default_format($scfg); | |
045ae0a7 | 868 | my $fmts = join ('|', @$vaidFmts); |
1dc01b9f DM |
869 | |
870 | my $res = []; | |
871 | ||
872 | foreach my $fn (<$imagedir/[0-9][0-9]*/*>) { | |
873 | ||
874 | next if $fn !~ m!^(/.+/(\d+)/([^/]+\.($fmts)))$!; | |
875 | $fn = $1; # untaint | |
876 | ||
877 | my $owner = $2; | |
878 | my $name = $3; | |
1dc01b9f | 879 | |
2502b33b | 880 | next if !$vollist && defined($vmid) && ($owner ne $vmid); |
1dc01b9f | 881 | |
73b7847e | 882 | my ($size, $format, $used, $parent) = file_size_info($fn); |
35533c68 | 883 | next if !($format && defined($size)); |
2502b33b DM |
884 | |
885 | my $volid; | |
886 | if ($parent && $parent =~ m!^../(\d+)/([^/]+\.($fmts))$!) { | |
887 | my ($basevmid, $basename) = ($1, $2); | |
888 | $volid = "$storeid:$basevmid/$basename/$owner/$name"; | |
889 | } else { | |
890 | $volid = "$storeid:$owner/$name"; | |
891 | } | |
1dc01b9f | 892 | |
2502b33b DM |
893 | if ($vollist) { |
894 | my $found = grep { $_ eq $volid } @$vollist; | |
895 | next if !$found; | |
1dc01b9f DM |
896 | } |
897 | ||
2502b33b DM |
898 | push @$res, { |
899 | volid => $volid, format => $format, | |
1a3459ac | 900 | size => $size, vmid => $owner, used => $used, parent => $parent |
2502b33b | 901 | }; |
1dc01b9f DM |
902 | } |
903 | ||
904 | return $res; | |
905 | } | |
906 | ||
907 | sub status { | |
908 | my ($class, $storeid, $scfg, $cache) = @_; | |
909 | ||
910 | my $path = $scfg->{path}; | |
911 | ||
912 | die "storage definintion has no path\n" if !$path; | |
045ae0a7 | 913 | |
1dc01b9f DM |
914 | my $timeout = 2; |
915 | my $res = PVE::Tools::df($path, $timeout); | |
916 | ||
917 | return undef if !$res || !$res->{total}; | |
918 | ||
919 | return ($res->{total}, $res->{avail}, $res->{used}, 1); | |
920 | } | |
921 | ||
aefe82ea | 922 | sub volume_snapshot_list { |
8b622c2d | 923 | my ($class, $scfg, $storeid, $volname) = @_; |
aefe82ea WL |
924 | |
925 | # implement in subclass | |
926 | die "Volume_snapshot_list is not implemented for $class"; | |
927 | ||
636ac5b8 | 928 | # return an empty array if dataset does not exist. |
aefe82ea WL |
929 | } |
930 | ||
1dc01b9f DM |
931 | sub activate_storage { |
932 | my ($class, $storeid, $scfg, $cache) = @_; | |
933 | ||
934 | my $path = $scfg->{path}; | |
935 | ||
936 | die "storage definintion has no path\n" if !$path; | |
937 | ||
e53050ed EK |
938 | # this path test may hang indefinitely on unresponsive mounts |
939 | my $timeout = 2; | |
940 | if (! PVE::Tools::run_fork_with_timeout($timeout, sub {-d $path})) { | |
941 | die "unable to activate storage '$storeid' - " . | |
942 | "directory '$path' does not exist or is unreachable\n"; | |
943 | } | |
944 | ||
1dc01b9f | 945 | |
c7616abc WB |
946 | return if defined($scfg->{mkdir}) && !$scfg->{mkdir}; |
947 | ||
1dc01b9f DM |
948 | if (defined($scfg->{content})) { |
949 | foreach my $vtype (keys %$vtype_subdirs) { | |
6bcc16d7 DM |
950 | # OpenVZMigrate uses backup (dump) dir |
951 | if (defined($scfg->{content}->{$vtype}) || | |
952 | ($vtype eq 'backup' && defined($scfg->{content}->{'rootdir'}))) { | |
953 | my $subdir = $class->get_subdir($scfg, $vtype); | |
954 | mkpath $subdir if $subdir ne $path; | |
955 | } | |
1dc01b9f DM |
956 | } |
957 | } | |
958 | } | |
959 | ||
960 | sub deactivate_storage { | |
961 | my ($class, $storeid, $scfg, $cache) = @_; | |
962 | ||
963 | # do nothing by default | |
964 | } | |
965 | ||
40d69893 DM |
966 | sub map_volume { |
967 | my ($class, $storeid, $scfg, $volname, $snapname) = @_; | |
968 | ||
d560ec28 ML |
969 | my ($path) = $class->path($scfg, $volname, $storeid, $snapname); |
970 | return $path; | |
40d69893 DM |
971 | } |
972 | ||
973 | sub unmap_volume { | |
974 | my ($class, $storeid, $scfg, $volname, $snapname) = @_; | |
975 | ||
976 | return 1; | |
977 | } | |
978 | ||
1dc01b9f | 979 | sub activate_volume { |
02e797b8 | 980 | my ($class, $storeid, $scfg, $volname, $snapname, $cache) = @_; |
1dc01b9f | 981 | |
02e797b8 | 982 | my $path = $class->filesystem_path($scfg, $volname, $snapname); |
1dc01b9f DM |
983 | |
984 | # check is volume exists | |
985 | if ($scfg->{path}) { | |
986 | die "volume '$storeid:$volname' does not exist\n" if ! -e $path; | |
987 | } else { | |
988 | die "volume '$storeid:$volname' does not exist\n" if ! -b $path; | |
989 | } | |
990 | } | |
991 | ||
992 | sub deactivate_volume { | |
02e797b8 | 993 | my ($class, $storeid, $scfg, $volname, $snapname, $cache) = @_; |
1dc01b9f DM |
994 | |
995 | # do nothing by default | |
996 | } | |
997 | ||
c9eeac01 AD |
998 | sub check_connection { |
999 | my ($class, $storeid, $scfg) = @_; | |
1000 | # do nothing by default | |
1001 | return 1; | |
1002 | } | |
1003 | ||
e1f6cb39 DM |
1004 | # Import/Export interface: |
1005 | # Any path based storage is assumed to support 'raw' and 'tar' streams, so | |
1006 | # the default implementations will return this if $scfg->{path} is set, | |
1007 | # mimicking the old PVE::Storage::storage_migrate() function. | |
1008 | # | |
1009 | # Plugins may fall back to PVE::Storage::Plugin::volume_{export,import}... | |
1010 | # functions in case the format doesn't match their specialized | |
1011 | # implementations to reuse the raw/tar code. | |
1012 | # | |
1013 | # Format specification: | |
1014 | # The following formats are all prefixed with image information in the form | |
1015 | # of a 64 bit little endian unsigned integer (pack('Q<')) in order to be able | |
1016 | # to preallocate the image on storages which require it. | |
1017 | # | |
1018 | # raw+size: (image files only) | |
1019 | # A raw binary data stream such as produced via `dd if=TheImageFile`. | |
1020 | # qcow2+size, vmdk: (image files only) | |
1021 | # A raw qcow2/vmdk/... file such as produced via `dd if=some.qcow2` for | |
1022 | # files which are already in qcow2 format, or via `qemu-img convert`. | |
1023 | # Note that these formats are only valid with $with_snapshots being true. | |
1024 | # tar+size: (subvolumes only) | |
6b3a4a25 WB |
1025 | # A GNU tar stream containing just the inner contents of the subvolume. |
1026 | # This does not distinguish between the contents of a privileged or | |
1027 | # unprivileged container. In other words, this is from the root user | |
1028 | # namespace's point of view with no uid-mapping in effect. | |
1029 | # As produced via `tar -C vm-100-disk-1.subvol -cpf TheOutputFile.dat .` | |
e1f6cb39 DM |
1030 | |
1031 | # Plugins may reuse these helpers. Changes to the header format should be | |
1032 | # reflected by changes to the function prototypes. | |
1033 | sub write_common_header($$) { | |
1034 | my ($fh, $image_size_in_bytes) = @_; | |
1035 | syswrite($fh, pack("Q<", $image_size_in_bytes), 8); | |
1036 | } | |
1037 | ||
1038 | sub read_common_header($) { | |
1039 | my ($fh) = @_; | |
1040 | sysread($fh, my $size, 8); | |
1041 | $size = unpack('Q<', $size); | |
1042 | die "got a bad size (not a multiple of 1K)\n" if ($size&1023); | |
1043 | # Size is in bytes! | |
1044 | return $size; | |
1045 | } | |
1046 | ||
47f37b53 WB |
1047 | # Export a volume into a file handle as a stream of desired format. |
1048 | sub volume_export { | |
1049 | my ($class, $scfg, $storeid, $fh, $volname, $format, $snapshot, $base_snapshot, $with_snapshots) = @_; | |
e1f6cb39 DM |
1050 | if ($scfg->{path} && !defined($snapshot) && !defined($base_snapshot)) { |
1051 | my $file = $class->path($scfg, $volname, $storeid) | |
1052 | or goto unsupported; | |
1053 | my ($size, $file_format) = file_size_info($file); | |
1054 | ||
1055 | if ($format eq 'raw+size') { | |
1056 | goto unsupported if $with_snapshots || $file_format eq 'subvol'; | |
1057 | write_common_header($fh, $size); | |
1058 | if ($file_format eq 'raw') { | |
1059 | run_command(['dd', "if=$file", "bs=4k"], output => '>&'.fileno($fh)); | |
1060 | } else { | |
1061 | run_command(['qemu-img', 'convert', '-f', $file_format, '-O', 'raw', $file, '/dev/stdout'], | |
1062 | output => '>&'.fileno($fh)); | |
1063 | } | |
1064 | return; | |
1065 | } elsif ($format =~ /^(qcow2|vmdk)\+size$/) { | |
1066 | my $data_format = $1; | |
1067 | goto unsupported if !$with_snapshots || $file_format ne $data_format; | |
1068 | write_common_header($fh, $size); | |
1069 | run_command(['dd', "if=$file", "bs=4k"], output => '>&'.fileno($fh)); | |
1070 | return; | |
1071 | } elsif ($format eq 'tar+size') { | |
1072 | goto unsupported if $file_format ne 'subvol'; | |
1073 | write_common_header($fh, $size); | |
6b3a4a25 | 1074 | run_command(['tar', @COMMON_TAR_FLAGS, '-cf', '-', '-C', $file, '.'], |
e1f6cb39 DM |
1075 | output => '>&'.fileno($fh)); |
1076 | return; | |
1077 | } | |
1078 | } | |
1079 | unsupported: | |
1080 | die "volume export format $format not available for $class"; | |
47f37b53 WB |
1081 | } |
1082 | ||
d390328b WB |
1083 | sub volume_export_formats { |
1084 | my ($class, $scfg, $storeid, $volname, $snapshot, $base_snapshot, $with_snapshots) = @_; | |
e1f6cb39 DM |
1085 | if ($scfg->{path} && !defined($snapshot) && !defined($base_snapshot)) { |
1086 | my $file = $class->path($scfg, $volname, $storeid) | |
1087 | or return; | |
1088 | my ($size, $format) = file_size_info($file); | |
1089 | ||
1090 | if ($with_snapshots) { | |
1091 | return ($format.'+size') if ($format eq 'qcow2' || $format eq 'vmdk'); | |
1092 | return (); | |
1093 | } | |
1094 | return ('tar+size') if $format eq 'subvol'; | |
1095 | return ('raw+size'); | |
1096 | } | |
1097 | return (); | |
d390328b WB |
1098 | } |
1099 | ||
47f37b53 WB |
1100 | # Import data from a stream, creating a new or replacing or adding to an existing volume. |
1101 | sub volume_import { | |
1102 | my ($class, $scfg, $storeid, $fh, $volname, $format, $base_snapshot, $with_snapshots) = @_; | |
e1f6cb39 DM |
1103 | |
1104 | die "volume import format '$format' not available for $class\n" | |
1105 | if $format !~ /^(raw|tar|qcow2|vmdk)\+size$/; | |
1106 | my $data_format = $1; | |
1107 | ||
1108 | die "format $format cannot be imported without snapshots\n" | |
1109 | if !$with_snapshots && ($data_format eq 'qcow2' || $data_format eq 'vmdk'); | |
1110 | die "format $format cannot be imported with snapshots\n" | |
1111 | if $with_snapshots && ($data_format eq 'raw' || $data_format eq 'tar'); | |
1112 | ||
1113 | my ($vtype, $name, $vmid, $basename, $basevmid, $isBase, $file_format) = | |
1114 | $class->parse_volname($volname); | |
1115 | ||
1116 | # XXX: Should we bother with conversion routines at this level? This won't | |
1117 | # happen without manual CLI usage, so for now we just error out... | |
1118 | die "cannot import format $format into a file of format $file_format\n" | |
1119 | if $data_format ne $file_format && !($data_format eq 'tar' && $file_format eq 'subvol'); | |
1120 | ||
1121 | # Check for an existing file first since interrupting alloc_image doesn't | |
1122 | # free it. | |
1123 | my $file = $class->path($scfg, $volname, $storeid); | |
1124 | die "file '$file' already exists\n" if -e $file; | |
1125 | ||
1126 | my ($size) = read_common_header($fh); | |
1127 | $size = int($size/1024); | |
1128 | ||
1129 | eval { | |
1130 | my $allocname = $class->alloc_image($storeid, $scfg, $vmid, $file_format, $name, $size); | |
1131 | if ($allocname ne $volname) { | |
1132 | my $oldname = $volname; | |
1133 | $volname = $allocname; # Let the cleanup code know what to free | |
1134 | die "internal error: unexpected allocated name: '$allocname' != '$oldname'\n"; | |
1135 | } | |
1136 | my $file = $class->path($scfg, $volname, $storeid) | |
1137 | or die "internal error: failed to get path to newly allocated volume $volname\n"; | |
1138 | if ($data_format eq 'raw' || $data_format eq 'qcow2' || $data_format eq 'vmdk') { | |
1139 | run_command(['dd', "of=$file", 'conv=sparse', 'bs=64k'], | |
1140 | input => '<&'.fileno($fh)); | |
1141 | } elsif ($data_format eq 'tar') { | |
6b3a4a25 | 1142 | run_command(['tar', @COMMON_TAR_FLAGS, '-C', $file, '-xf', '-'], |
e1f6cb39 DM |
1143 | input => '<&'.fileno($fh)); |
1144 | } else { | |
1145 | die "volume import format '$format' not available for $class"; | |
1146 | } | |
1147 | }; | |
1148 | if (my $err = $@) { | |
1149 | eval { $class->free_image($storeid, $scfg, $volname, 0, $file_format) }; | |
1150 | warn $@ if $@; | |
1151 | die $err; | |
1152 | } | |
47f37b53 | 1153 | } |
e47e548e | 1154 | |
d390328b WB |
1155 | sub volume_import_formats { |
1156 | my ($class, $scfg, $storeid, $volname, $base_snapshot, $with_snapshots) = @_; | |
e1f6cb39 DM |
1157 | if ($scfg->{path} && !defined($base_snapshot)) { |
1158 | my $format = ($class->parse_volname($volname))[6]; | |
1159 | if ($with_snapshots) { | |
1160 | return ($format.'+size') if ($format eq 'qcow2' || $format eq 'vmdk'); | |
1161 | return (); | |
1162 | } | |
1163 | return ('tar+size') if $format eq 'subvol'; | |
1164 | return ('raw+size'); | |
1165 | } | |
1166 | return (); | |
d390328b WB |
1167 | } |
1168 | ||
1dc01b9f | 1169 | 1; |