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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; | |
7fc619d5 | 5 | use File::chdir; |
1dc01b9f DM |
6 | use File::Path; |
7 | use PVE::Tools qw(run_command); | |
8 | use PVE::JSONSchema qw(get_standard_option); | |
9 | use PVE::Cluster qw(cfs_register_file); | |
10 | ||
11 | use Data::Dumper; | |
12 | ||
13 | use base qw(PVE::SectionConfig); | |
14 | ||
045ae0a7 | 15 | cfs_register_file ('storage.cfg', |
1dc01b9f DM |
16 | sub { __PACKAGE__->parse_config(@_); }, |
17 | sub { __PACKAGE__->write_config(@_); }); | |
18 | ||
35533c68 | 19 | |
1dc01b9f DM |
20 | my $defaultData = { |
21 | propertyList => { | |
22 | type => { description => "Storage type." }, | |
f7621c01 DM |
23 | storage => get_standard_option('pve-storage-id', |
24 | { completion => \&PVE::Storage::complete_storage }), | |
1dc01b9f DM |
25 | nodes => get_standard_option('pve-node-list', { optional => 1 }), |
26 | content => { | |
1f79bb07 | 27 | description => "Allowed content types. Note: value 'rootdir' is used for Containers, and value 'images' for KVM-Qemu VM's.\n", |
1dc01b9f DM |
28 | type => 'string', format => 'pve-storage-content-list', |
29 | optional => 1, | |
98437f4c | 30 | completion => \&PVE::Storage::complete_content_type, |
1dc01b9f DM |
31 | }, |
32 | disable => { | |
33 | description => "Flag to disable the storage.", | |
34 | type => 'boolean', | |
35 | optional => 1, | |
36 | }, | |
37 | maxfiles => { | |
38 | description => "Maximal number of backup files per VM. Use '0' for unlimted.", | |
39 | type => 'integer', | |
40 | minimum => 0, | |
41 | optional => 1, | |
42 | }, | |
43 | shared => { | |
44 | description => "Mark storage as shared.", | |
45 | type => 'boolean', | |
46 | optional => 1, | |
47 | }, | |
045ae0a7 | 48 | 'format' => { |
1dc01b9f DM |
49 | description => "Default Image format.", |
50 | type => 'string', format => 'pve-storage-format', | |
51 | optional => 1, | |
52 | }, | |
53 | }, | |
54 | }; | |
55 | ||
56 | sub content_hash_to_string { | |
57 | my $hash = shift; | |
58 | ||
59 | my @cta; | |
60 | foreach my $ct (keys %$hash) { | |
61 | push @cta, $ct if $hash->{$ct}; | |
045ae0a7 | 62 | } |
1dc01b9f DM |
63 | |
64 | return join(',', @cta); | |
65 | } | |
66 | ||
67 | sub valid_content_types { | |
68 | my ($type) = @_; | |
69 | ||
70 | my $def = $defaultData->{plugindata}->{$type}; | |
71 | ||
72 | return {} if !$def; | |
73 | ||
74 | return $def->{content}->[0]; | |
75 | } | |
76 | ||
77 | sub default_format { | |
78 | my ($scfg) = @_; | |
79 | ||
80 | my $type = $scfg->{type}; | |
81 | my $def = $defaultData->{plugindata}->{$type}; | |
045ae0a7 | 82 | |
1dc01b9f DM |
83 | my $def_format = 'raw'; |
84 | my $valid_formats = [ $def_format ]; | |
85 | ||
86 | if (defined($def->{format})) { | |
87 | $def_format = $scfg->{format} || $def->{format}->[1]; | |
88 | $valid_formats = [ sort keys %{$def->{format}->[0]} ]; | |
89 | } | |
045ae0a7 | 90 | |
1dc01b9f DM |
91 | return wantarray ? ($def_format, $valid_formats) : $def_format; |
92 | } | |
93 | ||
94 | PVE::JSONSchema::register_format('pve-storage-path', \&verify_path); | |
95 | sub verify_path { | |
96 | my ($path, $noerr) = @_; | |
97 | ||
98 | # fixme: exclude more shell meta characters? | |
99 | # we need absolute paths | |
100 | if ($path !~ m|^/[^;\(\)]+|) { | |
101 | return undef if $noerr; | |
102 | die "value does not look like a valid absolute path\n"; | |
103 | } | |
104 | return $path; | |
105 | } | |
106 | ||
107 | PVE::JSONSchema::register_format('pve-storage-server', \&verify_server); | |
108 | sub verify_server { | |
109 | my ($server, $noerr) = @_; | |
110 | ||
6bf617a9 WB |
111 | if (!(PVE::JSONSchema::pve_verify_ip($server, 1) || |
112 | PVE::JSONSchema::pve_verify_dns_name($server, 1))) | |
113 | { | |
1dc01b9f DM |
114 | return undef if $noerr; |
115 | die "value does not look like a valid server name or IP address\n"; | |
116 | } | |
117 | return $server; | |
118 | } | |
119 | ||
120 | # fixme: do we need this | |
121 | #PVE::JSONSchema::register_format('pve-storage-portal', \&verify_portal); | |
122 | #sub verify_portal { | |
123 | # my ($portal, $noerr) = @_; | |
124 | # | |
125 | # # IP with optional port | |
126 | # if ($portal !~ m/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}(:\d+)?$/) { | |
127 | # return undef if $noerr; | |
128 | # die "value does not look like a valid portal address\n"; | |
129 | # } | |
130 | # return $portal; | |
131 | #} | |
132 | ||
133 | PVE::JSONSchema::register_format('pve-storage-portal-dns', \&verify_portal_dns); | |
134 | sub verify_portal_dns { | |
135 | my ($portal, $noerr) = @_; | |
136 | ||
137 | # IP or DNS name with optional port | |
1689e627 | 138 | if (!PVE::Tools::parse_host_and_port($portal)) { |
1dc01b9f DM |
139 | return undef if $noerr; |
140 | die "value does not look like a valid portal address\n"; | |
141 | } | |
142 | return $portal; | |
143 | } | |
144 | ||
145 | PVE::JSONSchema::register_format('pve-storage-content', \&verify_content); | |
146 | sub verify_content { | |
147 | my ($ct, $noerr) = @_; | |
148 | ||
149 | my $valid_content = valid_content_types('dir'); # dir includes all types | |
045ae0a7 | 150 | |
1dc01b9f DM |
151 | if (!$valid_content->{$ct}) { |
152 | return undef if $noerr; | |
153 | die "invalid content type '$ct'\n"; | |
154 | } | |
155 | ||
156 | return $ct; | |
157 | } | |
158 | ||
159 | PVE::JSONSchema::register_format('pve-storage-format', \&verify_format); | |
160 | sub verify_format { | |
161 | my ($fmt, $noerr) = @_; | |
162 | ||
35533c68 | 163 | if ($fmt !~ m/(raw|qcow2|vmdk|subvol)/) { |
1dc01b9f DM |
164 | return undef if $noerr; |
165 | die "invalid format '$fmt'\n"; | |
166 | } | |
167 | ||
168 | return $fmt; | |
169 | } | |
170 | ||
171 | PVE::JSONSchema::register_format('pve-storage-options', \&verify_options); | |
172 | sub verify_options { | |
173 | my ($value, $noerr) = @_; | |
174 | ||
175 | # mount options (see man fstab) | |
176 | if ($value !~ m/^\S+$/) { | |
177 | return undef if $noerr; | |
178 | die "invalid options '$value'\n"; | |
179 | } | |
180 | ||
181 | return $value; | |
182 | } | |
183 | ||
a7f3d909 DM |
184 | PVE::JSONSchema::register_format('pve-volume-id', \&parse_volume_id); |
185 | sub parse_volume_id { | |
186 | my ($volid, $noerr) = @_; | |
187 | ||
188 | if ($volid =~ m/^([a-z][a-z0-9\-\_\.]*[a-z0-9]):(.+)$/i) { | |
189 | return wantarray ? ($1, $2) : $1; | |
190 | } | |
191 | return undef if $noerr; | |
192 | die "unable to parse volume ID '$volid'\n"; | |
193 | } | |
194 | ||
1dc01b9f DM |
195 | |
196 | sub private { | |
197 | return $defaultData; | |
198 | } | |
199 | ||
200 | sub parse_section_header { | |
201 | my ($class, $line) = @_; | |
202 | ||
203 | if ($line =~ m/^(\S+):\s*(\S+)\s*$/) { | |
204 | my ($type, $storeid) = (lc($1), $2); | |
205 | my $errmsg = undef; # set if you want to skip whole section | |
206 | eval { PVE::JSONSchema::parse_storage_id($storeid); }; | |
207 | $errmsg = $@ if $@; | |
208 | my $config = {}; # to return additional attributes | |
209 | return ($type, $storeid, $errmsg, $config); | |
210 | } | |
211 | return undef; | |
212 | } | |
213 | ||
214 | sub decode_value { | |
215 | my ($class, $type, $key, $value) = @_; | |
216 | ||
217 | my $def = $defaultData->{plugindata}->{$type}; | |
218 | ||
219 | if ($key eq 'content') { | |
220 | my $valid_content = $def->{content}->[0]; | |
045ae0a7 | 221 | |
1dc01b9f DM |
222 | my $res = {}; |
223 | ||
224 | foreach my $c (PVE::Tools::split_list($value)) { | |
225 | if (!$valid_content->{$c}) { | |
226 | die "storage does not support content type '$c'\n"; | |
227 | } | |
228 | $res->{$c} = 1; | |
045ae0a7 | 229 | } |
1dc01b9f DM |
230 | |
231 | if ($res->{none} && scalar (keys %$res) > 1) { | |
232 | die "unable to combine 'none' with other content types\n"; | |
233 | } | |
234 | ||
235 | return $res; | |
236 | } elsif ($key eq 'format') { | |
237 | my $valid_formats = $def->{format}->[0]; | |
238 | ||
239 | if (!$valid_formats->{$value}) { | |
240 | die "storage does not support format '$value'\n"; | |
241 | } | |
242 | ||
243 | return $value; | |
244 | } elsif ($key eq 'nodes') { | |
245 | my $res = {}; | |
246 | ||
247 | foreach my $node (PVE::Tools::split_list($value)) { | |
248 | if (PVE::JSONSchema::pve_verify_node_name($node)) { | |
249 | $res->{$node} = 1; | |
250 | } | |
251 | } | |
252 | ||
253 | # fixme: | |
254 | # no node restrictions for local storage | |
255 | #if ($storeid && $storeid eq 'local' && scalar(keys(%$res))) { | |
256 | # die "storage '$storeid' does not allow node restrictions\n"; | |
257 | #} | |
258 | ||
259 | return $res; | |
260 | } | |
261 | ||
262 | return $value; | |
263 | } | |
264 | ||
265 | sub encode_value { | |
266 | my ($class, $type, $key, $value) = @_; | |
267 | ||
268 | if ($key eq 'nodes') { | |
269 | return join(',', keys(%$value)); | |
270 | } elsif ($key eq 'content') { | |
271 | my $res = content_hash_to_string($value) || 'none'; | |
272 | return $res; | |
273 | } | |
274 | ||
275 | return $value; | |
276 | } | |
277 | ||
278 | sub parse_config { | |
279 | my ($class, $filename, $raw) = @_; | |
280 | ||
281 | my $cfg = $class->SUPER::parse_config($filename, $raw); | |
282 | my $ids = $cfg->{ids}; | |
283 | ||
284 | # make sure we have a reasonable 'local:' storage | |
285 | # openvz expects things to be there | |
286 | if (!$ids->{local} || $ids->{local}->{type} ne 'dir' || | |
287 | ($ids->{local}->{path} && $ids->{local}->{path} ne '/var/lib/vz')) { | |
288 | $ids->{local} = { | |
289 | type => 'dir', | |
290 | priority => 0, # force first entry | |
291 | path => '/var/lib/vz', | |
292 | maxfiles => 0, | |
293 | content => { images => 1, rootdir => 1, vztmpl => 1, iso => 1}, | |
294 | }; | |
295 | } | |
045ae0a7 | 296 | |
1dc01b9f DM |
297 | # we always need this for OpenVZ |
298 | $ids->{local}->{content}->{rootdir} = 1; | |
299 | $ids->{local}->{content}->{vztmpl} = 1; | |
300 | delete ($ids->{local}->{disable}); | |
301 | ||
302 | # make sure we have a path | |
303 | $ids->{local}->{path} = '/var/lib/vz' if !$ids->{local}->{path}; | |
304 | ||
305 | # remove node restrictions for local storage | |
306 | delete($ids->{local}->{nodes}); | |
307 | ||
308 | foreach my $storeid (keys %$ids) { | |
309 | my $d = $ids->{$storeid}; | |
310 | my $type = $d->{type}; | |
311 | ||
312 | my $def = $defaultData->{plugindata}->{$type}; | |
313 | ||
314 | if ($def->{content}) { | |
315 | $d->{content} = $def->{content}->[1] if !$d->{content}; | |
316 | } | |
317 | ||
d26e1891 | 318 | if ($type eq 'iscsi' || $type eq 'nfs' || $type eq 'rbd' || $type eq 'sheepdog' || $type eq 'iscsidirect' || $type eq 'glusterfs' || $type eq 'zfs' || $type eq 'drbd') { |
1dc01b9f DM |
319 | $d->{shared} = 1; |
320 | } | |
321 | } | |
322 | ||
323 | return $cfg; | |
324 | } | |
325 | ||
326 | # Storage implementation | |
327 | ||
328 | sub cluster_lock_storage { | |
329 | my ($class, $storeid, $shared, $timeout, $func, @param) = @_; | |
330 | ||
331 | my $res; | |
332 | if (!$shared) { | |
333 | my $lockid = "pve-storage-$storeid"; | |
334 | my $lockdir = "/var/lock/pve-manager"; | |
335 | mkdir $lockdir; | |
045ae0a7 | 336 | $res = PVE::Tools::lock_file("$lockdir/$lockid", $timeout, $func, @param); |
1dc01b9f DM |
337 | die $@ if $@; |
338 | } else { | |
339 | $res = PVE::Cluster::cfs_lock_storage($storeid, $timeout, $func, @param); | |
340 | die $@ if $@; | |
045ae0a7 | 341 | } |
1dc01b9f DM |
342 | return $res; |
343 | } | |
344 | ||
345 | sub parse_name_dir { | |
346 | my $name = shift; | |
347 | ||
35533c68 DM |
348 | if ($name =~ m!^((base-)?[^/\s]+\.(raw|qcow2|vmdk|subvol))$!) { |
349 | return ($1, $3, $2); # (name, format, isBase) | |
1dc01b9f DM |
350 | } |
351 | ||
352 | die "unable to parse volume filename '$name'\n"; | |
353 | } | |
354 | ||
355 | sub parse_volname { | |
356 | my ($class, $volname) = @_; | |
357 | ||
2502b33b DM |
358 | if ($volname =~ m!^(\d+)/(\S+)/(\d+)/(\S+)$!) { |
359 | my ($basedvmid, $basename) = ($1, $2); | |
360 | parse_name_dir($basename); | |
361 | my ($vmid, $name) = ($3, $4); | |
35533c68 DM |
362 | my (undef, $format, $isBase) = parse_name_dir($name); |
363 | return ('images', $name, $vmid, $basename, $basedvmid, $isBase, $format); | |
2502b33b | 364 | } elsif ($volname =~ m!^(\d+)/(\S+)$!) { |
1dc01b9f | 365 | my ($vmid, $name) = ($1, $2); |
35533c68 DM |
366 | my (undef, $format, $isBase) = parse_name_dir($name); |
367 | return ('images', $name, $vmid, undef, undef, $isBase, $format); | |
1dc01b9f DM |
368 | } elsif ($volname =~ m!^iso/([^/]+\.[Ii][Ss][Oo])$!) { |
369 | return ('iso', $1); | |
13d2cb79 | 370 | } elsif ($volname =~ m!^vztmpl/([^/]+\.tar\.[gx]z)$!) { |
1dc01b9f DM |
371 | return ('vztmpl', $1); |
372 | } elsif ($volname =~ m!^rootdir/(\d+)$!) { | |
373 | return ('rootdir', $1, $1); | |
a22854e5 | 374 | } elsif ($volname =~ m!^backup/([^/]+(\.(tar|tar\.gz|tar\.lzo|tgz|vma|vma\.gz|vma\.lzo)))$!) { |
1dc01b9f | 375 | my $fn = $1; |
4cb6e060 | 376 | if ($fn =~ m/^vzdump-(openvz|lxc|qemu)-(\d+)-.+/) { |
1dc01b9f DM |
377 | return ('backup', $fn, $2); |
378 | } | |
379 | return ('backup', $fn); | |
380 | } | |
381 | ||
382 | die "unable to parse directory volume name '$volname'\n"; | |
383 | } | |
384 | ||
045ae0a7 | 385 | my $vtype_subdirs = { |
1dc01b9f DM |
386 | images => 'images', |
387 | rootdir => 'private', | |
388 | iso => 'template/iso', | |
389 | vztmpl => 'template/cache', | |
390 | backup => 'dump', | |
391 | }; | |
392 | ||
393 | sub get_subdir { | |
394 | my ($class, $scfg, $vtype) = @_; | |
395 | ||
396 | my $path = $scfg->{path}; | |
397 | ||
398 | die "storage definintion has no path\n" if !$path; | |
399 | ||
400 | my $subdir = $vtype_subdirs->{$vtype}; | |
401 | ||
402 | die "unknown vtype '$vtype'\n" if !defined($subdir); | |
403 | ||
045ae0a7 | 404 | return "$path/$subdir"; |
1dc01b9f DM |
405 | } |
406 | ||
08480ce7 | 407 | sub filesystem_path { |
e67069eb | 408 | my ($class, $scfg, $volname, $snapname) = @_; |
1dc01b9f | 409 | |
e67069eb DM |
410 | my ($vtype, $name, $vmid, undef, undef, $isBase, $format) = |
411 | $class->parse_volname($volname); | |
412 | ||
413 | # Note: qcow2/qed has internal snapshot, so path is always | |
414 | # the same (with or without snapshot => same file). | |
415 | die "can't snapshot this image format\n" | |
416 | if defined($snapname) && $format !~ m/^(qcow2|qed)$/; | |
1dc01b9f DM |
417 | |
418 | my $dir = $class->get_subdir($scfg, $vtype); | |
419 | ||
420 | $dir .= "/$vmid" if $vtype eq 'images'; | |
421 | ||
422 | my $path = "$dir/$name"; | |
423 | ||
424 | return wantarray ? ($path, $vmid, $vtype) : $path; | |
425 | } | |
426 | ||
08480ce7 | 427 | sub path { |
e67069eb | 428 | my ($class, $scfg, $volname, $storeid, $snapname) = @_; |
08480ce7 | 429 | |
e67069eb | 430 | return $class->filesystem_path($scfg, $volname, $snapname); |
08480ce7 DM |
431 | } |
432 | ||
2502b33b DM |
433 | sub create_base { |
434 | my ($class, $storeid, $scfg, $volname) = @_; | |
435 | ||
436 | # this only works for file based storage types | |
437 | die "storage definintion has no path\n" if !$scfg->{path}; | |
438 | ||
35533c68 | 439 | my ($vtype, $name, $vmid, $basename, $basevmid, $isBase, $format) = |
2502b33b DM |
440 | $class->parse_volname($volname); |
441 | ||
442 | die "create_base on wrong vtype '$vtype'\n" if $vtype ne 'images'; | |
443 | ||
444 | die "create_base not possible with base image\n" if $isBase; | |
445 | ||
08480ce7 | 446 | my $path = $class->filesystem_path($scfg, $volname); |
2502b33b | 447 | |
35533c68 DM |
448 | my ($size, undef, $used, $parent) = file_size_info($path); |
449 | die "file_size_info on '$volname' failed\n" if !($format && defined($size)); | |
2502b33b DM |
450 | |
451 | die "volname '$volname' contains wrong information about parent\n" | |
452 | if $basename && (!$parent || $parent ne "../$basevmid/$basename"); | |
453 | ||
454 | my $newname = $name; | |
455 | $newname =~ s/^vm-/base-/; | |
456 | ||
457 | my $newvolname = $basename ? "$basevmid/$basename/$vmid/$newname" : | |
458 | "$vmid/$newname"; | |
459 | ||
08480ce7 | 460 | my $newpath = $class->filesystem_path($scfg, $newvolname); |
2502b33b DM |
461 | |
462 | die "file '$newpath' already exists\n" if -f $newpath; | |
463 | ||
1a3459ac | 464 | rename($path, $newpath) || |
2502b33b DM |
465 | die "rename '$path' to '$newpath' failed - $!\n"; |
466 | ||
c803c396 | 467 | # We try to protect base volume |
2502b33b | 468 | |
c803c396 DM |
469 | chmod(0444, $newpath); # nobody should write anything |
470 | ||
471 | # also try to set immutable flag | |
472 | eval { run_command(['/usr/bin/chattr', '+i', $newpath]); }; | |
473 | warn $@ if $@; | |
1a3459ac | 474 | |
2502b33b DM |
475 | return $newvolname; |
476 | } | |
477 | ||
478 | my $find_free_diskname = sub { | |
479 | my ($imgdir, $vmid, $fmt) = @_; | |
480 | ||
481 | my $disk_ids = {}; | |
1a3459ac | 482 | PVE::Tools::dir_glob_foreach($imgdir, |
2502b33b DM |
483 | qr!(vm|base)-$vmid-disk-(\d+)\..*!, |
484 | sub { | |
1a3459ac | 485 | my ($fn, $type, $disk) = @_; |
2502b33b DM |
486 | $disk_ids->{$disk} = 1; |
487 | }); | |
488 | ||
489 | for (my $i = 1; $i < 100; $i++) { | |
490 | if (!$disk_ids->{$i}) { | |
491 | return "vm-$vmid-disk-$i.$fmt"; | |
492 | } | |
493 | } | |
494 | ||
495 | die "unable to allocate a new image name for VM $vmid in '$imgdir'\n"; | |
496 | }; | |
497 | ||
498 | sub clone_image { | |
f236eaf8 | 499 | my ($class, $scfg, $storeid, $volname, $vmid, $snap) = @_; |
2502b33b DM |
500 | |
501 | # this only works for file based storage types | |
502 | die "storage definintion has no path\n" if !$scfg->{path}; | |
503 | ||
35533c68 | 504 | my ($vtype, $basename, $basevmid, undef, undef, $isBase, $format) = |
2502b33b DM |
505 | $class->parse_volname($volname); |
506 | ||
507 | die "clone_image on wrong vtype '$vtype'\n" if $vtype ne 'images'; | |
508 | ||
f236eaf8 SP |
509 | die "this storage type does not support clone_image on snapshot\n" if $snap; |
510 | ||
35533c68 DM |
511 | die "this storage type does not support clone_image on subvolumes\n" if $format eq 'subvol'; |
512 | ||
f236eaf8 | 513 | die "clone_image only works on base images\n" if !$isBase; |
1dc01b9f DM |
514 | |
515 | my $imagedir = $class->get_subdir($scfg, 'images'); | |
516 | $imagedir .= "/$vmid"; | |
517 | ||
518 | mkpath $imagedir; | |
519 | ||
2502b33b DM |
520 | my $name = &$find_free_diskname($imagedir, $vmid, "qcow2"); |
521 | ||
522 | warn "clone $volname: $vtype, $name, $vmid to $name (base=../$basevmid/$basename)\n"; | |
523 | ||
524 | my $newvol = "$basevmid/$basename/$vmid/$name"; | |
525 | ||
08480ce7 | 526 | my $path = $class->filesystem_path($scfg, $newvol); |
2502b33b | 527 | |
1a3459ac | 528 | # Note: we use relative paths, so we need to call chdir before qemu-img |
2502b33b | 529 | eval { |
7fc619d5 | 530 | local $CWD = $imagedir; |
2502b33b | 531 | |
1a3459ac | 532 | my $cmd = ['/usr/bin/qemu-img', 'create', '-b', "../$basevmid/$basename", |
2502b33b | 533 | '-f', 'qcow2', $path]; |
1a3459ac | 534 | |
2502b33b DM |
535 | run_command($cmd); |
536 | }; | |
537 | my $err = $@; | |
1dc01b9f | 538 | |
2502b33b DM |
539 | die $err if $err; |
540 | ||
541 | return $newvol; | |
542 | } | |
543 | ||
544 | sub alloc_image { | |
545 | my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_; | |
546 | ||
547 | my $imagedir = $class->get_subdir($scfg, 'images'); | |
548 | $imagedir .= "/$vmid"; | |
549 | ||
550 | mkpath $imagedir; | |
551 | ||
552 | $name = &$find_free_diskname($imagedir, $vmid, $fmt) if !$name; | |
1a3459ac | 553 | |
1dc01b9f DM |
554 | my (undef, $tmpfmt) = parse_name_dir($name); |
555 | ||
045ae0a7 | 556 | die "illegal name '$name' - wrong extension for format ('$tmpfmt != '$fmt')\n" |
1dc01b9f DM |
557 | if $tmpfmt ne $fmt; |
558 | ||
559 | my $path = "$imagedir/$name"; | |
560 | ||
561 | die "disk image '$path' already exists\n" if -e $path; | |
562 | ||
35533c68 DM |
563 | if ($fmt eq 'subvol') { |
564 | # only allow this if size = 0, so that user knows what he is doing | |
565 | die "storage does not support subvol quotas\n" if $size != 0; | |
566 | ||
567 | (mkdir $path) || die "unable to create subvol '$path' - $!\n"; | |
568 | } else { | |
569 | my $cmd = ['/usr/bin/qemu-img', 'create']; | |
045ae0a7 | 570 | |
35533c68 DM |
571 | push @$cmd, '-o', 'preallocation=metadata' if $fmt eq 'qcow2'; |
572 | ||
573 | push @$cmd, '-f', $fmt, $path, "${size}K"; | |
1dc01b9f | 574 | |
35533c68 DM |
575 | run_command($cmd, errmsg => "unable to create image"); |
576 | } | |
577 | ||
1dc01b9f DM |
578 | return "$vmid/$name"; |
579 | } | |
580 | ||
581 | sub free_image { | |
35533c68 | 582 | my ($class, $storeid, $scfg, $volname, $isBase, $format) = @_; |
1dc01b9f | 583 | |
08480ce7 | 584 | my $path = $class->filesystem_path($scfg, $volname); |
1dc01b9f | 585 | |
35533c68 DM |
586 | if ($format eq 'subvol') { |
587 | File::Path::remove_tree($path); | |
588 | } else { | |
589 | ||
590 | if (! -f $path) { | |
591 | warn "disk image '$path' does not exists\n"; | |
592 | return undef; | |
593 | } | |
1dc01b9f | 594 | |
35533c68 DM |
595 | if ($isBase) { |
596 | # try to remove immutable flag | |
597 | eval { run_command(['/usr/bin/chattr', '-i', $path]); }; | |
598 | warn $@ if $@; | |
599 | } | |
a7f3d909 | 600 | |
35533c68 DM |
601 | unlink($path) || die "unlink '$path' failed - $!\n"; |
602 | } | |
603 | ||
1dc01b9f DM |
604 | return undef; |
605 | } | |
606 | ||
607 | sub file_size_info { | |
608 | my ($filename, $timeout) = @_; | |
609 | ||
35533c68 DM |
610 | if (-d $filename) { |
611 | return wantarray ? (0, 'subvol', 0, undef) : 1; | |
612 | } | |
613 | ||
1dc01b9f DM |
614 | my $cmd = ['/usr/bin/qemu-img', 'info', $filename]; |
615 | ||
616 | my $format; | |
73b7847e | 617 | my $parent; |
1dc01b9f DM |
618 | my $size = 0; |
619 | my $used = 0; | |
620 | ||
621 | eval { | |
622 | run_command($cmd, timeout => $timeout, outfunc => sub { | |
623 | my $line = shift; | |
1dc01b9f DM |
624 | if ($line =~ m/^file format:\s+(\S+)\s*$/) { |
625 | $format = $1; | |
73b7847e AD |
626 | } elsif ($line =~ m/^backing file:\s(\S+)\s/) { |
627 | $parent = $1; | |
1dc01b9f DM |
628 | } elsif ($line =~ m/^virtual size:\s\S+\s+\((\d+)\s+bytes\)$/) { |
629 | $size = int($1); | |
630 | } elsif ($line =~ m/^disk size:\s+(\d+(.\d+)?)([KMGT])\s*$/) { | |
631 | $used = $1; | |
632 | my $u = $3; | |
633 | ||
634 | $used *= 1024 if $u eq 'K'; | |
635 | $used *= (1024*1024) if $u eq 'M'; | |
636 | $used *= (1024*1024*1024) if $u eq 'G'; | |
637 | $used *= (1024*1024*1024*1024) if $u eq 'T'; | |
638 | ||
639 | $used = int($used); | |
640 | } | |
641 | }); | |
642 | }; | |
643 | ||
73b7847e | 644 | return wantarray ? ($size, $format, $used, $parent) : $size; |
1dc01b9f DM |
645 | } |
646 | ||
e47e548e AD |
647 | sub volume_size_info { |
648 | my ($class, $scfg, $storeid, $volname, $timeout) = @_; | |
08480ce7 | 649 | my $path = $class->filesystem_path($scfg, $volname); |
e47e548e AD |
650 | return file_size_info($path, $timeout); |
651 | ||
652 | } | |
653 | ||
81f5058c AD |
654 | sub volume_resize { |
655 | my ($class, $scfg, $storeid, $volname, $size, $running) = @_; | |
656 | ||
6d788031 | 657 | die "can't resize this image format\n" if $volname !~ m/\.(raw|qcow2)$/; |
81f5058c AD |
658 | |
659 | return 1 if $running; | |
660 | ||
08480ce7 | 661 | my $path = $class->filesystem_path($scfg, $volname); |
81f5058c AD |
662 | |
663 | my $cmd = ['/usr/bin/qemu-img', 'resize', $path , $size]; | |
664 | ||
1059cc99 | 665 | run_command($cmd, timeout => 10); |
81f5058c AD |
666 | |
667 | return undef; | |
668 | } | |
669 | ||
7dcb0697 | 670 | sub volume_snapshot { |
f5640e7d | 671 | my ($class, $scfg, $storeid, $volname, $snap) = @_; |
7dcb0697 | 672 | |
6d788031 | 673 | die "can't snapshot this image format\n" if $volname !~ m/\.(qcow2|qed)$/; |
7dcb0697 | 674 | |
08480ce7 | 675 | my $path = $class->filesystem_path($scfg, $volname); |
7dcb0697 AD |
676 | |
677 | my $cmd = ['/usr/bin/qemu-img', 'snapshot','-c', $snap, $path]; | |
678 | ||
3f13fd7d | 679 | run_command($cmd); |
7dcb0697 AD |
680 | |
681 | return undef; | |
682 | } | |
683 | ||
1597f1f9 WL |
684 | sub volume_rollback_is_possible { |
685 | my ($class, $scfg, $storeid, $volname, $snap) = @_; | |
686 | ||
687 | return 1; | |
688 | } | |
689 | ||
41dffa85 AD |
690 | sub volume_snapshot_rollback { |
691 | my ($class, $scfg, $storeid, $volname, $snap) = @_; | |
692 | ||
6d788031 | 693 | die "can't rollback snapshot this image format\n" if $volname !~ m/\.(qcow2|qed)$/; |
41dffa85 | 694 | |
08480ce7 | 695 | my $path = $class->filesystem_path($scfg, $volname); |
41dffa85 AD |
696 | |
697 | my $cmd = ['/usr/bin/qemu-img', 'snapshot','-a', $snap, $path]; | |
698 | ||
3f13fd7d | 699 | run_command($cmd); |
41dffa85 AD |
700 | |
701 | return undef; | |
702 | } | |
703 | ||
6000a061 AD |
704 | sub volume_snapshot_delete { |
705 | my ($class, $scfg, $storeid, $volname, $snap, $running) = @_; | |
706 | ||
6d788031 | 707 | die "can't delete snapshot for this image format\n" if $volname !~ m/\.(qcow2|qed)$/; |
6000a061 AD |
708 | |
709 | return 1 if $running; | |
710 | ||
08480ce7 | 711 | my $path = $class->filesystem_path($scfg, $volname); |
6000a061 | 712 | |
399581a2 WB |
713 | $class->deactivate_volume($storeid, $scfg, $volname, $snap, {}); |
714 | ||
6000a061 AD |
715 | my $cmd = ['/usr/bin/qemu-img', 'snapshot','-d', $snap, $path]; |
716 | ||
3f13fd7d | 717 | run_command($cmd); |
6000a061 AD |
718 | |
719 | return undef; | |
720 | } | |
721 | ||
f884fe11 AD |
722 | sub volume_has_feature { |
723 | my ($class, $scfg, $feature, $storeid, $volname, $snapname, $running) = @_; | |
724 | ||
725 | my $features = { | |
5649ccfe AD |
726 | snapshot => { current => { qcow2 => 1}, snap => { qcow2 => 1} }, |
727 | clone => { base => {qcow2 => 1, raw => 1, vmdk => 1} }, | |
35533c68 | 728 | template => { current => {qcow2 => 1, raw => 1, vmdk => 1, subvol => 1} }, |
5649ccfe | 729 | copy => { base => {qcow2 => 1, raw => 1, vmdk => 1}, |
22b8cf97 AD |
730 | current => {qcow2 => 1, raw => 1, vmdk => 1}, |
731 | snap => {qcow2 => 1} }, | |
f884fe11 AD |
732 | }; |
733 | ||
35533c68 | 734 | my ($vtype, $name, $vmid, $basename, $basevmid, $isBase, $format) = |
dc4f2cb3 AD |
735 | $class->parse_volname($volname); |
736 | ||
dc4f2cb3 AD |
737 | my $key = undef; |
738 | if($snapname){ | |
2c5a7097 | 739 | $key = 'snap'; |
dc4f2cb3 AD |
740 | }else{ |
741 | $key = $isBase ? 'base' : 'current'; | |
f884fe11 | 742 | } |
dc4f2cb3 AD |
743 | |
744 | return 1 if defined($features->{$feature}->{$key}->{$format}); | |
745 | ||
f884fe11 AD |
746 | return undef; |
747 | } | |
748 | ||
1dc01b9f DM |
749 | sub list_images { |
750 | my ($class, $storeid, $scfg, $vmid, $vollist, $cache) = @_; | |
751 | ||
752 | my $imagedir = $class->get_subdir($scfg, 'images'); | |
753 | ||
754 | my ($defFmt, $vaidFmts) = default_format($scfg); | |
045ae0a7 | 755 | my $fmts = join ('|', @$vaidFmts); |
1dc01b9f DM |
756 | |
757 | my $res = []; | |
758 | ||
759 | foreach my $fn (<$imagedir/[0-9][0-9]*/*>) { | |
760 | ||
761 | next if $fn !~ m!^(/.+/(\d+)/([^/]+\.($fmts)))$!; | |
762 | $fn = $1; # untaint | |
763 | ||
764 | my $owner = $2; | |
765 | my $name = $3; | |
1dc01b9f | 766 | |
2502b33b | 767 | next if !$vollist && defined($vmid) && ($owner ne $vmid); |
1dc01b9f | 768 | |
73b7847e | 769 | my ($size, $format, $used, $parent) = file_size_info($fn); |
35533c68 | 770 | next if !($format && defined($size)); |
2502b33b DM |
771 | |
772 | my $volid; | |
773 | if ($parent && $parent =~ m!^../(\d+)/([^/]+\.($fmts))$!) { | |
774 | my ($basevmid, $basename) = ($1, $2); | |
775 | $volid = "$storeid:$basevmid/$basename/$owner/$name"; | |
776 | } else { | |
777 | $volid = "$storeid:$owner/$name"; | |
778 | } | |
1dc01b9f | 779 | |
2502b33b DM |
780 | if ($vollist) { |
781 | my $found = grep { $_ eq $volid } @$vollist; | |
782 | next if !$found; | |
1dc01b9f DM |
783 | } |
784 | ||
2502b33b DM |
785 | push @$res, { |
786 | volid => $volid, format => $format, | |
1a3459ac | 787 | size => $size, vmid => $owner, used => $used, parent => $parent |
2502b33b | 788 | }; |
1dc01b9f DM |
789 | } |
790 | ||
791 | return $res; | |
792 | } | |
793 | ||
794 | sub status { | |
795 | my ($class, $storeid, $scfg, $cache) = @_; | |
796 | ||
797 | my $path = $scfg->{path}; | |
798 | ||
799 | die "storage definintion has no path\n" if !$path; | |
045ae0a7 | 800 | |
1dc01b9f DM |
801 | my $timeout = 2; |
802 | my $res = PVE::Tools::df($path, $timeout); | |
803 | ||
804 | return undef if !$res || !$res->{total}; | |
805 | ||
806 | return ($res->{total}, $res->{avail}, $res->{used}, 1); | |
807 | } | |
808 | ||
809 | sub activate_storage { | |
810 | my ($class, $storeid, $scfg, $cache) = @_; | |
811 | ||
812 | my $path = $scfg->{path}; | |
813 | ||
814 | die "storage definintion has no path\n" if !$path; | |
815 | ||
816 | die "unable to activate storage '$storeid' - " . | |
817 | "directory '$path' does not exist\n" if ! -d $path; | |
818 | ||
819 | if (defined($scfg->{content})) { | |
820 | foreach my $vtype (keys %$vtype_subdirs) { | |
6bcc16d7 DM |
821 | # OpenVZMigrate uses backup (dump) dir |
822 | if (defined($scfg->{content}->{$vtype}) || | |
823 | ($vtype eq 'backup' && defined($scfg->{content}->{'rootdir'}))) { | |
824 | my $subdir = $class->get_subdir($scfg, $vtype); | |
825 | mkpath $subdir if $subdir ne $path; | |
826 | } | |
1dc01b9f DM |
827 | } |
828 | } | |
829 | } | |
830 | ||
831 | sub deactivate_storage { | |
832 | my ($class, $storeid, $scfg, $cache) = @_; | |
833 | ||
834 | # do nothing by default | |
835 | } | |
836 | ||
837 | sub activate_volume { | |
02e797b8 | 838 | my ($class, $storeid, $scfg, $volname, $snapname, $cache) = @_; |
1dc01b9f | 839 | |
02e797b8 | 840 | my $path = $class->filesystem_path($scfg, $volname, $snapname); |
1dc01b9f DM |
841 | |
842 | # check is volume exists | |
843 | if ($scfg->{path}) { | |
844 | die "volume '$storeid:$volname' does not exist\n" if ! -e $path; | |
845 | } else { | |
846 | die "volume '$storeid:$volname' does not exist\n" if ! -b $path; | |
847 | } | |
848 | } | |
849 | ||
850 | sub deactivate_volume { | |
02e797b8 | 851 | my ($class, $storeid, $scfg, $volname, $snapname, $cache) = @_; |
1dc01b9f DM |
852 | |
853 | # do nothing by default | |
854 | } | |
855 | ||
c9eeac01 AD |
856 | sub check_connection { |
857 | my ($class, $storeid, $scfg) = @_; | |
858 | # do nothing by default | |
859 | return 1; | |
860 | } | |
861 | ||
e47e548e | 862 | |
1dc01b9f | 863 | 1; |