16 use PVE
::Tools
qw(run_command file_read_firstline dir_glob_foreach $IPV6RE);
17 use PVE
::Cluster
qw(cfs_read_file cfs_write_file cfs_lock_file);
18 use PVE
::Exception
qw(raise_param_exc);
21 use PVE
::RPCEnvironment
;
23 use PVE
::Storage
::Plugin
;
24 use PVE
::Storage
::DirPlugin
;
25 use PVE
::Storage
::LVMPlugin
;
26 use PVE
::Storage
::LvmThinPlugin
;
27 use PVE
::Storage
::NFSPlugin
;
28 use PVE
::Storage
::CIFSPlugin
;
29 use PVE
::Storage
::ISCSIPlugin
;
30 use PVE
::Storage
::RBDPlugin
;
31 use PVE
::Storage
::CephFSPlugin
;
32 use PVE
::Storage
::SheepdogPlugin
;
33 use PVE
::Storage
::ISCSIDirectPlugin
;
34 use PVE
::Storage
::GlusterfsPlugin
;
35 use PVE
::Storage
::ZFSPoolPlugin
;
36 use PVE
::Storage
::ZFSPlugin
;
37 use PVE
::Storage
::DRBDPlugin
;
39 # Storage API version. Icrement it on changes in storage API interface.
40 use constant APIVER
=> 2;
41 # Age is the number of versions we're backward compatible with.
42 # This is like having 'current=APIVER' and age='APIAGE' in libtool,
43 # see https://www.gnu.org/software/libtool/manual/html_node/Libtool-versioning.html
44 use constant APIAGE
=> 1;
46 # load standard plugins
47 PVE
::Storage
::DirPlugin-
>register();
48 PVE
::Storage
::LVMPlugin-
>register();
49 PVE
::Storage
::LvmThinPlugin-
>register();
50 PVE
::Storage
::NFSPlugin-
>register();
51 PVE
::Storage
::CIFSPlugin-
>register();
52 PVE
::Storage
::ISCSIPlugin-
>register();
53 PVE
::Storage
::RBDPlugin-
>register();
54 PVE
::Storage
::CephFSPlugin-
>register();
55 PVE
::Storage
::SheepdogPlugin-
>register();
56 PVE
::Storage
::ISCSIDirectPlugin-
>register();
57 PVE
::Storage
::GlusterfsPlugin-
>register();
58 PVE
::Storage
::ZFSPoolPlugin-
>register();
59 PVE
::Storage
::ZFSPlugin-
>register();
60 PVE
::Storage
::DRBDPlugin-
>register();
62 # load third-party plugins
63 if ( -d
'/usr/share/perl5/PVE/Storage/Custom' ) {
64 dir_glob_foreach
('/usr/share/perl5/PVE/Storage/Custom', '.*\.pm$', sub {
66 my $modname = 'PVE::Storage::Custom::' . $file;
67 $modname =~ s!\.pm$!!;
68 $file = 'PVE/Storage/Custom/' . $file;
73 # Check perl interface:
74 die "not derived from PVE::Storage::Plugin\n"
75 if !$modname->isa('PVE::Storage::Plugin');
76 die "does not provide an api() method\n"
77 if !$modname->can('api');
78 # Check storage API version and that file is really storage plugin.
79 my $version = $modname->api();
80 die "implements an API version newer than current ($version > " . APIVER
. ")\n"
82 my $min_version = (APIVER
- APIAGE
);
83 die "API version too old, please update the plugin ($version < $min_version)\n"
84 if $version < $min_version;
88 # If we got this far and the API version is not the same, make some
90 warn "Plugin \"$modname\" is implementing an older storage API
, an upgrade
is recommended
\n"
91 if $version != APIVER;
94 warn "Error loading storage plugin
\"$modname\": $@";
99 # initialize all plugins
100 PVE
::Storage
::Plugin-
>init();
102 my $UDEVADM = '/sbin/udevadm';
104 # PVE::Storage utility functions
107 return cfs_read_file
("storage.cfg");
113 cfs_write_file
('storage.cfg', $cfg);
116 sub lock_storage_config
{
117 my ($code, $errmsg) = @_;
119 cfs_lock_file
("storage.cfg", undef, $code);
122 $errmsg ?
die "$errmsg: $err" : die $err;
127 my ($cfg, $storeid, $noerr) = @_;
129 die "no storage ID specified\n" if !$storeid;
131 my $scfg = $cfg->{ids
}->{$storeid};
133 die "storage '$storeid' does not exists\n" if (!$noerr && !$scfg);
138 sub storage_check_node
{
139 my ($cfg, $storeid, $node, $noerr) = @_;
141 my $scfg = storage_config
($cfg, $storeid);
143 if ($scfg->{nodes
}) {
144 $node = PVE
::INotify
::nodename
() if !$node || ($node eq 'localhost');
145 if (!$scfg->{nodes
}->{$node}) {
146 die "storage '$storeid' is not available on node '$node'\n" if !$noerr;
154 sub storage_check_enabled
{
155 my ($cfg, $storeid, $node, $noerr) = @_;
157 my $scfg = storage_config
($cfg, $storeid);
159 if ($scfg->{disable
}) {
160 die "storage '$storeid' is disabled\n" if !$noerr;
164 return storage_check_node
($cfg, $storeid, $node, $noerr);
167 # storage_can_replicate:
168 # return true if storage supports replication
169 # (volumes alocated with vdisk_alloc() has replication feature)
170 sub storage_can_replicate
{
171 my ($cfg, $storeid, $format) = @_;
173 my $scfg = storage_config
($cfg, $storeid);
174 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
175 return $plugin->storage_can_replicate($scfg, $storeid, $format);
181 return keys %{$cfg->{ids
}};
185 my ($filename, $timeout) = @_;
187 return PVE
::Storage
::Plugin
::file_size_info
($filename, $timeout);
190 sub volume_size_info
{
191 my ($cfg, $volid, $timeout) = @_;
193 my ($storeid, $volname) = parse_volume_id
($volid, 1);
195 my $scfg = storage_config
($cfg, $storeid);
196 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
197 return $plugin->volume_size_info($scfg, $storeid, $volname, $timeout);
198 } elsif ($volid =~ m
|^(/.+)$| && -e
$volid) {
199 return file_size_info
($volid, $timeout);
206 my ($cfg, $volid, $size, $running) = @_;
208 my ($storeid, $volname) = parse_volume_id
($volid, 1);
210 my $scfg = storage_config
($cfg, $storeid);
211 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
212 return $plugin->volume_resize($scfg, $storeid, $volname, $size, $running);
213 } elsif ($volid =~ m
|^(/.+)$| && -e
$volid) {
214 die "resize file/device '$volid' is not possible\n";
216 die "unable to parse volume ID '$volid'\n";
220 sub volume_rollback_is_possible
{
221 my ($cfg, $volid, $snap) = @_;
223 my ($storeid, $volname) = parse_volume_id
($volid, 1);
225 my $scfg = storage_config
($cfg, $storeid);
226 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
227 return $plugin->volume_rollback_is_possible($scfg, $storeid, $volname, $snap);
228 } elsif ($volid =~ m
|^(/.+)$| && -e
$volid) {
229 die "snapshot rollback file/device '$volid' is not possible\n";
231 die "unable to parse volume ID '$volid'\n";
235 sub volume_snapshot
{
236 my ($cfg, $volid, $snap) = @_;
238 my ($storeid, $volname) = parse_volume_id
($volid, 1);
240 my $scfg = storage_config
($cfg, $storeid);
241 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
242 return $plugin->volume_snapshot($scfg, $storeid, $volname, $snap);
243 } elsif ($volid =~ m
|^(/.+)$| && -e
$volid) {
244 die "snapshot file/device '$volid' is not possible\n";
246 die "unable to parse volume ID '$volid'\n";
250 sub volume_snapshot_rollback
{
251 my ($cfg, $volid, $snap) = @_;
253 my ($storeid, $volname) = parse_volume_id
($volid, 1);
255 my $scfg = storage_config
($cfg, $storeid);
256 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
257 $plugin->volume_rollback_is_possible($scfg, $storeid, $volname, $snap);
258 return $plugin->volume_snapshot_rollback($scfg, $storeid, $volname, $snap);
259 } elsif ($volid =~ m
|^(/.+)$| && -e
$volid) {
260 die "snapshot rollback file/device '$volid' is not possible\n";
262 die "unable to parse volume ID '$volid'\n";
266 sub volume_snapshot_delete
{
267 my ($cfg, $volid, $snap, $running) = @_;
269 my ($storeid, $volname) = parse_volume_id
($volid, 1);
271 my $scfg = storage_config
($cfg, $storeid);
272 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
273 return $plugin->volume_snapshot_delete($scfg, $storeid, $volname, $snap, $running);
274 } elsif ($volid =~ m
|^(/.+)$| && -e
$volid) {
275 die "snapshot delete file/device '$volid' is not possible\n";
277 die "unable to parse volume ID '$volid'\n";
281 sub volume_has_feature
{
282 my ($cfg, $feature, $volid, $snap, $running) = @_;
284 my ($storeid, $volname) = parse_volume_id
($volid, 1);
286 my $scfg = storage_config
($cfg, $storeid);
287 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
288 return $plugin->volume_has_feature($scfg, $feature, $storeid, $volname, $snap, $running);
289 } elsif ($volid =~ m
|^(/.+)$| && -e
$volid) {
296 sub volume_snapshot_list
{
297 my ($cfg, $volid) = @_;
299 my ($storeid, $volname) = parse_volume_id
($volid, 1);
301 my $scfg = storage_config
($cfg, $storeid);
302 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
303 return $plugin->volume_snapshot_list($scfg, $storeid, $volname);
304 } elsif ($volid =~ m
|^(/.+)$| && -e
$volid) {
305 die "send file/device '$volid' is not possible\n";
307 die "unable to parse volume ID '$volid'\n";
309 # return an empty array if dataset does not exist.
313 my ($cfg, $storeid, $vmid) = @_;
315 my $scfg = storage_config
($cfg, $storeid);
316 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
318 my $path = $plugin->get_subdir($scfg, 'images');
320 return $vmid ?
"$path/$vmid" : $path;
323 sub get_private_dir
{
324 my ($cfg, $storeid, $vmid) = @_;
326 my $scfg = storage_config
($cfg, $storeid);
327 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
329 my $path = $plugin->get_subdir($scfg, 'rootdir');
331 return $vmid ?
"$path/$vmid" : $path;
335 my ($cfg, $storeid) = @_;
337 my $scfg = storage_config
($cfg, $storeid);
338 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
340 return $plugin->get_subdir($scfg, 'iso');
344 my ($cfg, $storeid) = @_;
346 my $scfg = storage_config
($cfg, $storeid);
347 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
349 return $plugin->get_subdir($scfg, 'vztmpl');
353 my ($cfg, $storeid) = @_;
355 my $scfg = storage_config
($cfg, $storeid);
356 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
358 return $plugin->get_subdir($scfg, 'backup');
361 # library implementation
366 die "VMID '$vmid' contains illegal characters\n" if $vmid !~ m/^\d+$/;
371 # NOTE: basename and basevmid are always undef for LVM-thin, where the
372 # clone -> base reference is not encoded in the volume ID.
373 # see note in PVE::Storage::LvmThinPlugin for details.
375 my ($cfg, $volid) = @_;
377 my ($storeid, $volname) = parse_volume_id
($volid);
379 my $scfg = storage_config
($cfg, $storeid);
381 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
383 # returns ($vtype, $name, $vmid, $basename, $basevmid, $isBase, $format)
385 return $plugin->parse_volname($volname);
388 sub parse_volume_id
{
389 my ($volid, $noerr) = @_;
391 return PVE
::Storage
::Plugin
::parse_volume_id
($volid, $noerr);
394 # test if we have read access to volid
395 sub check_volume_access
{
396 my ($rpcenv, $user, $cfg, $vmid, $volid) = @_;
398 my ($sid, $volname) = parse_volume_id
($volid, 1);
400 my ($vtype, undef, $ownervm) = parse_volname
($cfg, $volid);
401 if ($vtype eq 'iso' || $vtype eq 'vztmpl') {
402 # require at least read access to storage, (custom) templates/ISOs could be sensitive
403 $rpcenv->check_any($user, "/storage/$sid", ['Datastore.AllocateSpace', 'Datastore.Audit']);
404 } elsif (defined($ownervm) && defined($vmid) && ($ownervm == $vmid)) {
405 # we are owner - allow access
406 } elsif ($vtype eq 'backup' && $ownervm) {
407 $rpcenv->check($user, "/storage/$sid", ['Datastore.AllocateSpace']);
408 $rpcenv->check($user, "/vms/$ownervm", ['VM.Backup']);
410 # allow if we are Datastore administrator
411 $rpcenv->check($user, "/storage/$sid", ['Datastore.Allocate']);
414 die "Only root can pass arbitrary filesystem paths."
415 if $user ne 'root@pam';
421 my $volume_is_base_and_used__no_lock = sub {
422 my ($scfg, $storeid, $plugin, $volname) = @_;
424 my ($vtype, $name, $vmid, undef, undef, $isBase, undef) =
425 $plugin->parse_volname($volname);
428 my $vollist = $plugin->list_images($storeid, $scfg);
429 foreach my $info (@$vollist) {
430 my (undef, $tmpvolname) = parse_volume_id
($info->{volid
});
431 my $basename = undef;
432 my $basevmid = undef;
435 (undef, undef, undef, $basename, $basevmid) =
436 $plugin->parse_volname($tmpvolname);
439 if ($basename && defined($basevmid) && $basevmid == $vmid && $basename eq $name) {
447 # NOTE: this check does not work for LVM-thin, where the clone -> base
448 # reference is not encoded in the volume ID.
449 # see note in PVE::Storage::LvmThinPlugin for details.
450 sub volume_is_base_and_used
{
451 my ($cfg, $volid) = @_;
453 my ($storeid, $volname) = parse_volume_id
($volid);
454 my $scfg = storage_config
($cfg, $storeid);
455 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
457 $plugin->cluster_lock_storage($storeid, $scfg->{shared
}, undef, sub {
458 return &$volume_is_base_and_used__no_lock($scfg, $storeid, $plugin, $volname);
462 # try to map a filesystem path to a volume identifier
463 sub path_to_volume_id
{
464 my ($cfg, $path) = @_;
466 my $ids = $cfg->{ids
};
468 my ($sid, $volname) = parse_volume_id
($path, 1);
470 if (my $scfg = $ids->{$sid}) {
472 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
473 my ($vtype, $name, $vmid) = $plugin->parse_volname($volname);
474 return ($vtype, $path);
480 # Note: abs_path() return undef if $path doesn not exist
481 # for example when nfs storage is not mounted
482 $path = abs_path
($path) || $path;
484 foreach my $sid (keys %$ids) {
485 my $scfg = $ids->{$sid};
486 next if !$scfg->{path
};
487 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
488 my $imagedir = $plugin->get_subdir($scfg, 'images');
489 my $isodir = $plugin->get_subdir($scfg, 'iso');
490 my $tmpldir = $plugin->get_subdir($scfg, 'vztmpl');
491 my $backupdir = $plugin->get_subdir($scfg, 'backup');
492 my $privatedir = $plugin->get_subdir($scfg, 'rootdir');
494 if ($path =~ m!^$imagedir/(\d+)/([^/\s]+)$!) {
498 my $vollist = $plugin->list_images($sid, $scfg, $vmid);
499 foreach my $info (@$vollist) {
500 my ($storeid, $volname) = parse_volume_id
($info->{volid
});
501 my $volpath = $plugin->path($scfg, $volname, $storeid);
502 if ($volpath eq $path) {
503 return ('images', $info->{volid
});
506 } elsif ($path =~ m!^$isodir/([^/]+\.[Ii][Ss][Oo])$!) {
508 return ('iso', "$sid:iso/$name");
509 } elsif ($path =~ m!^$tmpldir/([^/]+\.tar\.gz)$!) {
511 return ('vztmpl', "$sid:vztmpl/$name");
512 } elsif ($path =~ m!^$privatedir/(\d+)$!) {
514 return ('rootdir', "$sid:rootdir/$vmid");
515 } elsif ($path =~ m!^$backupdir/([^/]+\.(tar|tar\.gz|tar\.lzo|tgz|vma|vma\.gz|vma\.lzo))$!) {
517 return ('iso', "$sid:backup/$name");
521 # can't map path to volume id
526 my ($cfg, $volid, $snapname) = @_;
528 my ($storeid, $volname) = parse_volume_id
($volid);
530 my $scfg = storage_config
($cfg, $storeid);
532 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
533 my ($path, $owner, $vtype) = $plugin->path($scfg, $volname, $storeid, $snapname);
534 return wantarray ?
($path, $owner, $vtype) : $path;
537 sub abs_filesystem_path
{
538 my ($cfg, $volid) = @_;
541 if (PVE
::Storage
::parse_volume_id
($volid, 1)) {
542 PVE
::Storage
::activate_volumes
($cfg, [ $volid ]);
543 $path = PVE
::Storage
::path
($cfg, $volid);
546 my $abspath = abs_path
($volid);
547 if ($abspath && $abspath =~ m
|^(/.+)$|) {
548 $path = $1; # untaint any path
553 die "can't find file '$volid'\n" if !($path && -f
$path);
558 sub storage_migrate
{
559 my ($cfg, $volid, $target_sshinfo, $target_storeid, $target_volname, $base_snapshot, $snapshot, $ratelimit_bps, $insecure, $with_snapshots, $logfunc) = @_;
561 my ($storeid, $volname) = parse_volume_id
($volid);
562 $target_volname = $volname if !$target_volname;
564 my $scfg = storage_config
($cfg, $storeid);
566 # no need to migrate shared content
567 return if $storeid eq $target_storeid && $scfg->{shared
};
569 my $tcfg = storage_config
($cfg, $target_storeid);
571 my $target_volid = "${target_storeid}:${target_volname}";
573 my $target_ip = $target_sshinfo->{ip
};
574 my $errstr = "unable to migrate '$volid' to '${target_volid}' on host '$target_sshinfo->{name}'";
576 my $ssh = PVE
::Cluster
::ssh_info_to_command
($target_sshinfo);
577 my $ssh_base = PVE
::Cluster
::ssh_info_to_command_base
($target_sshinfo);
578 local $ENV{RSYNC_RSH
} = PVE
::Tools
::cmd2string
($ssh_base);
580 my @cstream = ([ '/usr/bin/cstream', '-t', $ratelimit_bps ])
581 if defined($ratelimit_bps);
583 my $migration_snapshot;
584 if (!defined($snapshot)) {
585 if ($scfg->{type
} eq 'zfspool') {
586 $migration_snapshot = 1;
587 $snapshot = '__migration__';
591 my @formats = volume_transfer_formats
($cfg, $volid, $volid, $snapshot, $base_snapshot, $with_snapshots);
592 die "cannot migrate from storage type '$scfg->{type}' to '$tcfg->{type}'\n" if !@formats;
593 my $format = $formats[0];
597 @insecurecmd = ('pvecm', 'mtunnel', '-run-command', 1);
598 if (my $network = $target_sshinfo->{network
}) {
599 push @insecurecmd, '-migration_network', $network;
603 $with_snapshots = $with_snapshots ?
1 : 0; # sanitize for passing as cli parameter
604 my $send = ['pvesm', 'export', $volid, $format, '-', '-with-snapshots', $with_snapshots];
605 my $recv = [@$ssh, @insecurecmd, '--', 'pvesm', 'import', $volid, $format, '-', '-with-snapshots', $with_snapshots];
606 if (defined($snapshot)) {
607 push @$send, '-snapshot', $snapshot
609 if ($migration_snapshot) {
610 push @$recv, '-delete-snapshot', $snapshot;
613 if (defined($base_snapshot)) {
614 # Check if the snapshot exists on the remote side:
615 push @$send, '-base', $base_snapshot;
616 push @$recv, '-base', $base_snapshot;
619 volume_snapshot
($cfg, $volid, $snapshot) if $migration_snapshot;
622 open(my $info, '-|', @$recv)
623 or die "receive command failed: $!\n";
624 my ($ip) = <$info> =~ /^($PVE::Tools::IPRE)$/ or die "no tunnel IP received\n";
625 my ($port) = <$info> =~ /^(\d+)$/ or die "no tunnel port received\n";
626 my $socket = IO
::Socket
::IP-
>new(PeerHost
=> $ip, PeerPort
=> $port, Type
=> SOCK_STREAM
)
627 or die "failed to connect to tunnel at $ip:$port\n";
628 # we won't be reading from the socket
629 shutdown($socket, 0);
630 run_command
([$send, @cstream], output
=> '>&'.fileno($socket));
631 # don't close the connection entirely otherwise the receiving end
632 # might not get all buffered data (and fails with 'connection reset by peer')
633 shutdown($socket, 1);
634 1 while <$info>; # wait for the remote process to finish
635 # now close the socket
637 if (!close($info)) { # does waitpid()
638 die "import failed: $!\n" if $!;
639 die "import failed: exit code ".($?>>8)."\n";
642 run_command
([$send, @cstream, $recv], logfunc
=> $logfunc);
646 warn "send/receive failed, cleaning up snapshot(s)..\n" if $err;
647 if ($migration_snapshot) {
648 eval { volume_snapshot_delete
($cfg, $volid, $snapshot, 0) };
649 warn "could not remove source snapshot: $@\n" if $@;
655 my ($cfg, $volid, $vmid, $snap) = @_;
657 my ($storeid, $volname) = parse_volume_id
($volid);
659 my $scfg = storage_config
($cfg, $storeid);
661 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
663 activate_storage
($cfg, $storeid);
665 # lock shared storage
666 return $plugin->cluster_lock_storage($storeid, $scfg->{shared
}, undef, sub {
667 my $volname = $plugin->clone_image($scfg, $storeid, $volname, $vmid, $snap);
668 return "$storeid:$volname";
672 sub vdisk_create_base
{
673 my ($cfg, $volid) = @_;
675 my ($storeid, $volname) = parse_volume_id
($volid);
677 my $scfg = storage_config
($cfg, $storeid);
679 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
681 activate_storage
($cfg, $storeid);
683 # lock shared storage
684 return $plugin->cluster_lock_storage($storeid, $scfg->{shared
}, undef, sub {
685 my $volname = $plugin->create_base($storeid, $scfg, $volname);
686 return "$storeid:$volname";
691 my ($cfg, $volid, $snapname) = @_;
693 my ($storeid, $volname) = parse_volume_id
($volid);
695 my $scfg = storage_config
($cfg, $storeid);
697 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
699 return $plugin->map_volume($storeid, $scfg, $volname, $snapname);
703 my ($cfg, $volid, $snapname) = @_;
705 my ($storeid, $volname) = parse_volume_id
($volid);
707 my $scfg = storage_config
($cfg, $storeid);
709 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
711 return $plugin->unmap_volume($storeid, $scfg, $volname, $snapname);
715 my ($cfg, $storeid, $vmid, $fmt, $name, $size) = @_;
717 die "no storage ID specified\n" if !$storeid;
719 PVE
::JSONSchema
::parse_storage_id
($storeid);
721 my $scfg = storage_config
($cfg, $storeid);
723 die "no VMID specified\n" if !$vmid;
725 $vmid = parse_vmid
($vmid);
727 my $defformat = PVE
::Storage
::Plugin
::default_format
($scfg);
729 $fmt = $defformat if !$fmt;
731 activate_storage
($cfg, $storeid);
733 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
735 # lock shared storage
736 return $plugin->cluster_lock_storage($storeid, $scfg->{shared
}, undef, sub {
737 my $old_umask = umask(umask|0037);
738 my $volname = eval { $plugin->alloc_image($storeid, $scfg, $vmid, $fmt, $name, $size) };
742 return "$storeid:$volname";
747 my ($cfg, $volid) = @_;
749 my ($storeid, $volname) = parse_volume_id
($volid);
750 my $scfg = storage_config
($cfg, $storeid);
751 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
753 activate_storage
($cfg, $storeid);
757 # lock shared storage
758 $plugin->cluster_lock_storage($storeid, $scfg->{shared
}, undef, sub {
759 # LVM-thin allows deletion of still referenced base volumes!
760 die "base volume '$volname' is still in use by linked clones\n"
761 if &$volume_is_base_and_used__no_lock($scfg, $storeid, $plugin, $volname);
763 my (undef, undef, undef, undef, undef, $isBase, $format) =
764 $plugin->parse_volname($volname);
765 $cleanup_worker = $plugin->free_image($storeid, $scfg, $volname, $isBase, $format);
768 return if !$cleanup_worker;
770 my $rpcenv = PVE
::RPCEnvironment
::get
();
771 my $authuser = $rpcenv->get_user();
773 $rpcenv->fork_worker('imgdel', undef, $authuser, $cleanup_worker);
776 # lists all files in the snippets directory
778 my ($cfg, $storeid) = @_;
780 my $ids = $cfg->{ids
};
782 storage_check_enabled
($cfg, $storeid) if ($storeid);
786 foreach my $sid (keys %$ids) {
787 next if $storeid && $storeid ne $sid;
788 next if !storage_check_enabled
($cfg, $sid, undef, 1);
790 my $scfg = $ids->{$sid};
791 next if !$scfg->{content
}->{snippets
};
793 activate_storage
($cfg, $sid);
796 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
797 my $path = $plugin->get_subdir($scfg, 'snippets');
799 foreach my $fn (<$path/*>) {
802 push @{$res->{$sid}}, {
803 volid
=> "$sid:snippets/". basename
($fn),
811 @{$res->{$sid}} = sort {$a->{volid
} cmp $b->{volid
} } @{$res->{$sid}};
818 #list iso or openvz template ($tt = <iso|vztmpl|backup>)
820 my ($cfg, $storeid, $tt) = @_;
822 die "unknown template type '$tt'\n"
823 if !($tt eq 'iso' || $tt eq 'vztmpl' || $tt eq 'backup');
825 my $ids = $cfg->{ids
};
827 storage_check_enabled
($cfg, $storeid) if ($storeid);
833 foreach my $sid (keys %$ids) {
834 next if $storeid && $storeid ne $sid;
836 my $scfg = $ids->{$sid};
837 my $type = $scfg->{type
};
839 next if !storage_check_enabled
($cfg, $sid, undef, 1);
841 next if $tt eq 'iso' && !$scfg->{content
}->{iso
};
842 next if $tt eq 'vztmpl' && !$scfg->{content
}->{vztmpl
};
843 next if $tt eq 'backup' && !$scfg->{content
}->{backup
};
845 activate_storage
($cfg, $sid);
848 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
850 my $path = $plugin->get_subdir($scfg, $tt);
852 foreach my $fn (<$path/*>) {
857 next if $fn !~ m!/([^/]+\.[Ii][Ss][Oo])$!;
859 $info = { volid
=> "$sid:iso/$1", format
=> 'iso' };
861 } elsif ($tt eq 'vztmpl') {
862 next if $fn !~ m!/([^/]+\.tar\.([gx]z))$!;
864 $info = { volid
=> "$sid:vztmpl/$1", format
=> "t$2" };
866 } elsif ($tt eq 'backup') {
867 next if $fn !~ m!/([^/]+\.(tar|tar\.gz|tar\.lzo|tgz|vma|vma\.gz|vma\.lzo))$!;
869 $info = { volid
=> "$sid:backup/$1", format
=> $2 };
872 $info->{size
} = -s
$fn;
874 push @{$res->{$sid}}, $info;
879 @{$res->{$sid}} = sort {lc($a->{volid
}) cmp lc ($b->{volid
}) } @{$res->{$sid}} if $res->{$sid};
887 my ($cfg, $storeid, $vmid, $vollist) = @_;
889 my $ids = $cfg->{ids
};
891 storage_check_enabled
($cfg, $storeid) if ($storeid);
895 # prepare/activate/refresh all storages
897 my $storage_list = [];
899 foreach my $volid (@$vollist) {
900 my ($sid, undef) = parse_volume_id
($volid);
901 next if !defined($ids->{$sid});
902 next if !storage_check_enabled
($cfg, $sid, undef, 1);
903 push @$storage_list, $sid;
906 foreach my $sid (keys %$ids) {
907 next if $storeid && $storeid ne $sid;
908 next if !storage_check_enabled
($cfg, $sid, undef, 1);
909 push @$storage_list, $sid;
915 activate_storage_list
($cfg, $storage_list, $cache);
917 foreach my $sid (keys %$ids) {
918 next if $storeid && $storeid ne $sid;
919 next if !storage_check_enabled
($cfg, $sid, undef, 1);
921 my $scfg = $ids->{$sid};
922 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
923 $res->{$sid} = $plugin->list_images($sid, $scfg, $vmid, $vollist, $cache);
924 @{$res->{$sid}} = sort {lc($a->{volid
}) cmp lc ($b->{volid
}) } @{$res->{$sid}} if $res->{$sid};
931 my ($cfg, $storeid, $vmid, $content) = @_;
933 my @ctypes = qw(images vztmpl iso backup snippets);
935 my $cts = $content ?
[ $content ] : [ @ctypes ];
937 my $scfg = PVE
::Storage
::storage_config
($cfg, $storeid);
940 foreach my $ct (@$cts) {
942 if ($ct eq 'images') {
943 $data = vdisk_list
($cfg, $storeid, $vmid);
944 } elsif ($ct eq 'iso' && !defined($vmid)) {
945 $data = template_list
($cfg, $storeid, 'iso');
946 } elsif ($ct eq 'vztmpl'&& !defined($vmid)) {
947 $data = template_list
($cfg, $storeid, 'vztmpl');
948 } elsif ($ct eq 'backup') {
949 $data = template_list
($cfg, $storeid, 'backup');
950 foreach my $item (@{$data->{$storeid}}) {
951 if (defined($vmid)) {
952 @{$data->{$storeid}} = grep { $_->{volid
} =~ m/\S+-$vmid-\S+/ } @{$data->{$storeid}};
955 } elsif ($ct eq 'snippets') {
956 $data = snippets_list
($cfg, $storeid);
959 next if !$data || !$data->{$storeid};
961 foreach my $item (@{$data->{$storeid}}) {
962 $item->{content
} = $ct;
972 my $filename = "/sys/kernel/uevent_seqnum";
975 if (my $fh = IO
::File-
>new($filename, "r")) {
977 if ($line =~ m/^(\d+)$/) {
985 sub activate_storage
{
986 my ($cfg, $storeid, $cache) = @_;
988 $cache = {} if !$cache;
990 my $scfg = storage_check_enabled
($cfg, $storeid);
992 return if $cache->{activated
}->{$storeid};
994 $cache->{uevent_seqnum
} = uevent_seqnum
() if !$cache->{uevent_seqnum
};
996 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
999 my ($baseid, undef) = parse_volume_id
($scfg->{base
});
1000 activate_storage
($cfg, $baseid, $cache);
1003 if (!$plugin->check_connection($storeid, $scfg)) {
1004 die "storage '$storeid' is not online\n";
1007 $plugin->activate_storage($storeid, $scfg, $cache);
1009 my $newseq = uevent_seqnum
();
1011 # only call udevsettle if there are events
1012 if ($newseq > $cache->{uevent_seqnum
}) {
1014 system ("$UDEVADM settle --timeout=$timeout"); # ignore errors
1015 $cache->{uevent_seqnum
} = $newseq;
1018 $cache->{activated
}->{$storeid} = 1;
1021 sub activate_storage_list
{
1022 my ($cfg, $storeid_list, $cache) = @_;
1024 $cache = {} if !$cache;
1026 foreach my $storeid (@$storeid_list) {
1027 activate_storage
($cfg, $storeid, $cache);
1031 sub deactivate_storage
{
1032 my ($cfg, $storeid) = @_;
1034 my $scfg = storage_config
($cfg, $storeid);
1035 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
1038 $plugin->deactivate_storage($storeid, $scfg, $cache);
1041 sub activate_volumes
{
1042 my ($cfg, $vollist, $snapname) = @_;
1044 return if !($vollist && scalar(@$vollist));
1046 my $storagehash = {};
1047 foreach my $volid (@$vollist) {
1048 my ($storeid, undef) = parse_volume_id
($volid);
1049 $storagehash->{$storeid} = 1;
1054 activate_storage_list
($cfg, [keys %$storagehash], $cache);
1056 foreach my $volid (@$vollist) {
1057 my ($storeid, $volname) = parse_volume_id
($volid);
1058 my $scfg = storage_config
($cfg, $storeid);
1059 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
1060 $plugin->activate_volume($storeid, $scfg, $volname, $snapname, $cache);
1064 sub deactivate_volumes
{
1065 my ($cfg, $vollist, $snapname) = @_;
1067 return if !($vollist && scalar(@$vollist));
1072 foreach my $volid (@$vollist) {
1073 my ($storeid, $volname) = parse_volume_id
($volid);
1075 my $scfg = storage_config
($cfg, $storeid);
1076 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
1079 $plugin->deactivate_volume($storeid, $scfg, $volname, $snapname, $cache);
1083 push @errlist, $volid;
1087 die "volume deactivation failed: " . join(' ', @errlist)
1088 if scalar(@errlist);
1092 my ($cfg, $content, $includeformat) = @_;
1094 my $ids = $cfg->{ids
};
1098 my @ctypes = PVE
::Tools
::split_list
($content);
1101 foreach my $storeid (keys %$ids) {
1102 my $storage_enabled = defined(storage_check_enabled
($cfg, $storeid, undef, 1));
1104 if (defined($content)) {
1106 foreach my $ctype (@ctypes) {
1107 if ($ids->{$storeid}->{content
}->{$ctype}) {
1112 next if !$want_ctype || !$storage_enabled;
1115 my $type = $ids->{$storeid}->{type
};
1117 $info->{$storeid} = {
1122 shared
=> $ids->{$storeid}->{shared
} ?
1 : 0,
1123 content
=> PVE
::Storage
::Plugin
::content_hash_to_string
($ids->{$storeid}->{content
}),
1125 enabled
=> $storage_enabled ?
1 : 0,
1128 push @$slist, $storeid;
1133 foreach my $storeid (keys %$ids) {
1134 my $scfg = $ids->{$storeid};
1136 next if !$info->{$storeid};
1137 next if !$info->{$storeid}->{enabled
};
1139 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
1140 if ($includeformat) {
1141 my $pd = $plugin->plugindata();
1142 $info->{$storeid}->{format
} = $pd->{format
}
1144 $info->{$storeid}->{select_existing
} = $pd->{select_existing
}
1145 if $pd->{select_existing
};
1148 eval { activate_storage
($cfg, $storeid, $cache); };
1154 my ($total, $avail, $used, $active) = eval { $plugin->status($storeid, $scfg, $cache); };
1157 $info->{$storeid}->{total
} = int($total);
1158 $info->{$storeid}->{avail
} = int($avail);
1159 $info->{$storeid}->{used
} = int($used);
1160 $info->{$storeid}->{active
} = $active;
1169 my ($packed_ip, $family);
1171 my @res = PVE
::Tools
::getaddrinfo_all
($server);
1172 $family = $res[0]->{family
};
1173 $packed_ip = (PVE
::Tools
::unpack_sockaddr_in46
($res[0]->{addr
}))[2];
1175 if (defined $packed_ip) {
1176 return Socket
::inet_ntop
($family, $packed_ip);
1182 my ($server_in) = @_;
1185 if (!($server = resolv_server
($server_in))) {
1186 die "unable to resolve address for server '${server_in}'\n";
1189 my $cmd = ['/sbin/showmount', '--no-headers', '--exports', $server];
1192 run_command
($cmd, outfunc
=> sub {
1195 # note: howto handle white spaces in export path??
1196 if ($line =~ m!^(/\S+)\s+(.+)$!) {
1205 my ($server_in, $user, $password, $domain) = @_;
1208 if (!($server = resolv_server
($server_in))) {
1209 die "unable to resolve address for server '${server_in}'\n";
1212 # we support only Windows grater than 2012 cifsscan so use smb3
1213 my $cmd = ['/usr/bin/smbclient', '-m', 'smb3', '-d', '0', '-L', $server];
1214 if (defined($user)) {
1215 die "password is required" if !defined($password);
1216 push @$cmd, '-U', "$user\%$password";
1217 push @$cmd, '-W', $domain if defined($domain);
1226 if ($line =~ m/(\S+)\s*Disk\s*(\S*)/) {
1228 } elsif ($line =~ m/(NT_STATUS_(\S*))/) {
1241 my $cmd = ['zfs', 'list', '-t', 'filesystem', '-H', '-o', 'name,avail,used'];
1244 run_command
($cmd, outfunc
=> sub {
1247 if ($line =~m/^(\S+)\s+(\S+)\s+(\S+)$/) {
1248 my ($pool, $size_str, $used_str) = ($1, $2, $3);
1249 my $size = PVE
::Storage
::ZFSPoolPlugin
::zfs_parse_size
($size_str);
1250 my $used = PVE
::Storage
::ZFSPoolPlugin
::zfs_parse_size
($used_str);
1251 # ignore subvolumes generated by our ZFSPoolPlugin
1252 return if $pool =~ m!/subvol-\d+-[^/]+$!;
1253 return if $pool =~ m!/basevol-\d+-[^/]+$!;
1254 push @$res, { pool
=> $pool, size
=> $size, free
=> $size-$used };
1262 my ($portal, $noerr) = @_;
1264 my ($server, $port) = PVE
::Tools
::parse_host_and_port
($portal);
1266 if (my $ip = resolv_server
($server)) {
1268 $server = "[$server]" if $server =~ /^$IPV6RE$/;
1269 return $port ?
"$server:$port" : $server;
1272 return undef if $noerr;
1274 raise_param_exc
({ portal
=> "unable to resolve portal address '$portal'" });
1279 my ($portal_in) = @_;
1282 if (!($portal = resolv_portal
($portal_in))) {
1283 die "unable to parse/resolve portal address '${portal_in}'\n";
1286 return PVE
::Storage
::ISCSIPlugin
::iscsi_discovery
($portal);
1289 sub storage_default_format
{
1290 my ($cfg, $storeid) = @_;
1292 my $scfg = storage_config
($cfg, $storeid);
1294 return PVE
::Storage
::Plugin
::default_format
($scfg);
1297 sub vgroup_is_used
{
1298 my ($cfg, $vgname) = @_;
1300 foreach my $storeid (keys %{$cfg->{ids
}}) {
1301 my $scfg = storage_config
($cfg, $storeid);
1302 if ($scfg->{type
} eq 'lvm' && $scfg->{vgname
} eq $vgname) {
1310 sub target_is_used
{
1311 my ($cfg, $target) = @_;
1313 foreach my $storeid (keys %{$cfg->{ids
}}) {
1314 my $scfg = storage_config
($cfg, $storeid);
1315 if ($scfg->{type
} eq 'iscsi' && $scfg->{target
} eq $target) {
1323 sub volume_is_used
{
1324 my ($cfg, $volid) = @_;
1326 foreach my $storeid (keys %{$cfg->{ids
}}) {
1327 my $scfg = storage_config
($cfg, $storeid);
1328 if ($scfg->{base
} && $scfg->{base
} eq $volid) {
1336 sub storage_is_used
{
1337 my ($cfg, $storeid) = @_;
1339 foreach my $sid (keys %{$cfg->{ids
}}) {
1340 my $scfg = storage_config
($cfg, $sid);
1341 next if !$scfg->{base
};
1342 my ($st) = parse_volume_id
($scfg->{base
});
1343 return 1 if $st && $st eq $storeid;
1350 my ($list, $func) = @_;
1354 foreach my $sid (keys %$list) {
1355 foreach my $info (@{$list->{$sid}}) {
1356 my $volid = $info->{volid
};
1357 my ($sid1, $volname) = parse_volume_id
($volid, 1);
1358 if ($sid1 && $sid1 eq $sid) {
1359 &$func ($volid, $sid, $info);
1361 warn "detected strange volid '$volid' in volume list for '$sid'\n";
1367 sub extract_vzdump_config_tar
{
1368 my ($archive, $conf_re) = @_;
1370 die "ERROR: file '$archive' does not exist\n" if ! -f
$archive;
1372 my $pid = open(my $fh, '-|', 'tar', 'tf', $archive) ||
1373 die "unable to open file '$archive'\n";
1376 while (defined($file = <$fh>)) {
1377 if ($file =~ $conf_re) {
1378 $file = $1; # untaint
1387 die "ERROR: archive contains no configuration file\n" if !$file;
1393 $raw .= "$output\n";
1396 PVE
::Tools
::run_command
(['tar', '-xpOf', $archive, $file, '--occurrence'], outfunc
=> $out);
1398 return wantarray ?
($raw, $file) : $raw;
1401 sub extract_vzdump_config_vma
{
1402 my ($archive, $comp) = @_;
1408 $raw .= "$output\n";
1414 if ($comp eq 'gz') {
1415 $uncomp = ["zcat", $archive];
1416 } elsif ($comp eq 'lzo') {
1417 $uncomp = ["lzop", "-d", "-c", $archive];
1419 die "unknown compression method '$comp'\n";
1421 $cmd = [$uncomp, ["vma", "config", "-"]];
1423 # in some cases, lzop/zcat exits with 1 when its stdout pipe is
1424 # closed early by vma, detect this and ignore the exit code later
1429 if ($output =~ m/lzop: Broken pipe: <stdout>/ || $output =~ m/gzip: stdout: Broken pipe/) {
1431 } elsif (!defined ($errstring) && $output !~ m/^\s*$/) {
1432 $errstring = "Failed to extract config from VMA archive: $output\n";
1436 # in other cases, the pipeline will exit with exit code 141
1437 # because of the broken pipe, handle / ignore this as well
1440 $rc = PVE
::Tools
::run_command
($cmd, outfunc
=> $out, errfunc
=> $err, noerr
=> 1);
1444 # use exit code if no stderr output and not just broken pipe
1445 if (!$errstring && !$broken_pipe && $rc != 0 && $rc != 141) {
1446 die "$rerr\n" if $rerr;
1447 die "config extraction failed with exit code $rc\n";
1449 die "$errstring\n" if $errstring;
1451 # simple case without compression and weird piping behaviour
1452 PVE
::Tools
::run_command
(["vma", "config", $archive], outfunc
=> $out);
1455 return wantarray ?
($raw, undef) : $raw;
1458 sub extract_vzdump_config
{
1459 my ($cfg, $volid) = @_;
1461 my $archive = abs_filesystem_path
($cfg, $volid);
1463 if ($volid =~ /vzdump-(lxc|openvz)-\d+-(\d{4})_(\d{2})_(\d{2})-(\d{2})_(\d{2})_(\d{2})\.(tgz|(tar(\.(gz|lzo))?))$/) {
1464 return extract_vzdump_config_tar
($archive, qr!^(\./etc/vzdump/(pct|vps)\.conf)$!);
1465 } elsif ($volid =~ /vzdump-qemu-\d+-(\d{4})_(\d{2})_(\d{2})-(\d{2})_(\d{2})_(\d{2})\.(tgz|((tar|vma)(\.(gz|lzo))?))$/) {
1473 $comp = $11 if defined($11);
1476 if ($format eq 'tar') {
1477 return extract_vzdump_config_tar
($archive, qr!\(\./qemu-server\.conf\)!);
1479 return extract_vzdump_config_vma
($archive, $comp);
1482 die "cannot determine backup guest type for backup archive '$volid'\n";
1487 my ($cfg, $fh, $volid, $format, $snapshot, $base_snapshot, $with_snapshots) = @_;
1489 my ($storeid, $volname) = parse_volume_id
($volid, 1);
1490 die "cannot export volume '$volid'\n" if !$storeid;
1491 my $scfg = storage_config
($cfg, $storeid);
1492 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
1493 return $plugin->volume_export($scfg, $storeid, $fh, $volname, $format,
1494 $snapshot, $base_snapshot, $with_snapshots);
1498 my ($cfg, $fh, $volid, $format, $base_snapshot, $with_snapshots) = @_;
1500 my ($storeid, $volname) = parse_volume_id
($volid, 1);
1501 die "cannot import into volume '$volid'\n" if !$storeid;
1502 my $scfg = storage_config
($cfg, $storeid);
1503 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
1504 return $plugin->volume_import($scfg, $storeid, $fh, $volname, $format,
1505 $base_snapshot, $with_snapshots);
1508 sub volume_export_formats
{
1509 my ($cfg, $volid, $snapshot, $base_snapshot, $with_snapshots) = @_;
1511 my ($storeid, $volname) = parse_volume_id
($volid, 1);
1512 return if !$storeid;
1513 my $scfg = storage_config
($cfg, $storeid);
1514 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
1515 return $plugin->volume_export_formats($scfg, $storeid, $volname,
1516 $snapshot, $base_snapshot,
1520 sub volume_import_formats
{
1521 my ($cfg, $volid, $base_snapshot, $with_snapshots) = @_;
1523 my ($storeid, $volname) = parse_volume_id
($volid, 1);
1524 return if !$storeid;
1525 my $scfg = storage_config
($cfg, $storeid);
1526 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
1527 return $plugin->volume_import_formats($scfg, $storeid, $volname,
1528 $base_snapshot, $with_snapshots);
1531 sub volume_transfer_formats
{
1532 my ($cfg, $src_volid, $dst_volid, $snapshot, $base_snapshot, $with_snapshots) = @_;
1533 my @export_formats = volume_export_formats
($cfg, $src_volid, $snapshot, $base_snapshot, $with_snapshots);
1534 my @import_formats = volume_import_formats
($cfg, $dst_volid, $base_snapshot, $with_snapshots);
1535 my %import_hash = map { $_ => 1 } @import_formats;
1536 my @common = grep { $import_hash{$_} } @export_formats;
1540 # bash completion helper
1542 sub complete_storage
{
1543 my ($cmdname, $pname, $cvalue) = @_;
1545 my $cfg = PVE
::Storage
::config
();
1547 return $cmdname eq 'add' ?
[] : [ PVE
::Storage
::storage_ids
($cfg) ];
1550 sub complete_storage_enabled
{
1551 my ($cmdname, $pname, $cvalue) = @_;
1555 my $cfg = PVE
::Storage
::config
();
1556 foreach my $sid (keys %{$cfg->{ids
}}) {
1557 next if !storage_check_enabled
($cfg, $sid, undef, 1);
1563 sub complete_content_type
{
1564 my ($cmdname, $pname, $cvalue) = @_;
1566 return [qw(rootdir images vztmpl iso backup snippets)];
1569 sub complete_volume
{
1570 my ($cmdname, $pname, $cvalue) = @_;
1574 my $storage_list = complete_storage_enabled
();
1576 if ($cvalue =~ m/^([^:]+):/) {
1577 $storage_list = [ $1 ];
1579 if (scalar(@$storage_list) > 1) {
1580 # only list storage IDs to avoid large listings
1582 foreach my $storeid (@$storage_list) {
1583 # Hack: simply return 2 artificial values, so that
1584 # completions does not finish
1585 push @$res, "$storeid:volname", "$storeid:...";
1592 foreach my $storeid (@$storage_list) {
1593 my $vollist = PVE
::Storage
::volume_list
($cfg, $storeid);
1595 foreach my $item (@$vollist) {
1596 push @$res, $item->{volid
};
1603 # Various io-heavy operations require io/bandwidth limits which can be
1604 # configured on multiple levels: The global defaults in datacenter.cfg, and
1605 # per-storage overrides. When we want to do a restore from storage A to storage
1606 # B, we should take the smaller limit defined for storages A and B, and if no
1607 # such limit was specified, use the one from datacenter.cfg.
1608 sub get_bandwidth_limit
{
1609 my ($operation, $storage_list, $override) = @_;
1611 # called for each limit (global, per-storage) with the 'default' and the
1612 # $operation limit and should udpate $override for every limit affecting
1614 my $use_global_limits = 0;
1615 my $apply_limit = sub {
1617 if (defined($bwlimit)) {
1618 my $limits = PVE
::JSONSchema
::parse_property_string
('bwlimit', $bwlimit);
1619 my $limit = $limits->{$operation} // $limits->{default};
1620 if (defined($limit)) {
1621 if (!$override || $limit < $override) {
1627 # If there was no applicable limit, try to apply the global ones.
1628 $use_global_limits = 1;
1631 my ($rpcenv, $authuser);
1632 if (defined($override)) {
1633 $rpcenv = PVE
::RPCEnvironment-
>get();
1634 $authuser = $rpcenv->get_user();
1637 # Apply per-storage limits - if there are storages involved.
1638 if (defined($storage_list) && @$storage_list) {
1639 my $config = config
();
1641 # The Datastore.Allocate permission allows us to modify the per-storage
1642 # limits, therefore it also allows us to override them.
1643 # Since we have most likely multiple storages to check, do a quick check on
1644 # the general '/storage' path to see if we can skip the checks entirely:
1645 return $override if $rpcenv && $rpcenv->check($authuser, '/storage', ['Datastore.Allocate'], 1);
1648 foreach my $storage (@$storage_list) {
1649 # Avoid duplicate checks:
1650 next if $done{$storage};
1651 $done{$storage} = 1;
1653 # Otherwise we may still have individual /storage/$ID permissions:
1654 if (!$rpcenv || !$rpcenv->check($authuser, "/storage/$storage", ['Datastore.Allocate'], 1)) {
1655 # And if not: apply the limits.
1656 my $storecfg = storage_config
($config, $storage);
1657 $apply_limit->($storecfg->{bwlimit
});
1661 # Storage limits take precedence over the datacenter defaults, so if
1662 # a limit was applied:
1663 return $override if !$use_global_limits;
1666 # Sys.Modify on '/' means we can change datacenter.cfg which contains the
1667 # global default limits.
1668 if (!$rpcenv || !$rpcenv->check($authuser, '/', ['Sys.Modify'], 1)) {
1669 # So if we cannot modify global limits, apply them to our currently
1670 # requested override.
1671 my $dc = cfs_read_file
('datacenter.cfg');
1672 $apply_limit->($dc->{bwlimit
});
1678 # checks if the storage id is available and dies if not
1679 sub assert_sid_unused
{
1683 if (my $scfg = storage_config
($cfg, $sid, 1)) {
1684 die "storage ID '$sid' already defined\n";