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