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' || $vtype eq 'vztmpl') {
402 # we simply allow access
403 } elsif (defined($ownervm) && defined($vmid) && ($ownervm == $vmid)) {
404 # we are owner - allow access
405 } elsif ($vtype eq 'backup' && $ownervm) {
406 $rpcenv->check($user, "/storage/$sid", ['Datastore.AllocateSpace']);
407 $rpcenv->check($user, "/vms/$ownervm", ['VM.Backup']);
409 # allow if we are Datastore administrator
410 $rpcenv->check($user, "/storage/$sid", ['Datastore.Allocate']);
413 die "Only root can pass arbitrary filesystem paths."
414 if $user ne 'root@pam';
420 my $volume_is_base_and_used__no_lock = sub {
421 my ($scfg, $storeid, $plugin, $volname) = @_;
423 my ($vtype, $name, $vmid, undef, undef, $isBase, undef) =
424 $plugin->parse_volname($volname);
427 my $vollist = $plugin->list_images($storeid, $scfg);
428 foreach my $info (@$vollist) {
429 my (undef, $tmpvolname) = parse_volume_id
($info->{volid
});
430 my $basename = undef;
431 my $basevmid = undef;
434 (undef, undef, undef, $basename, $basevmid) =
435 $plugin->parse_volname($tmpvolname);
438 if ($basename && defined($basevmid) && $basevmid == $vmid && $basename eq $name) {
446 # NOTE: this check does not work for LVM-thin, where the clone -> base
447 # reference is not encoded in the volume ID.
448 # see note in PVE::Storage::LvmThinPlugin for details.
449 sub volume_is_base_and_used
{
450 my ($cfg, $volid) = @_;
452 my ($storeid, $volname) = parse_volume_id
($volid);
453 my $scfg = storage_config
($cfg, $storeid);
454 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
456 $plugin->cluster_lock_storage($storeid, $scfg->{shared
}, undef, sub {
457 return &$volume_is_base_and_used__no_lock($scfg, $storeid, $plugin, $volname);
461 # try to map a filesystem path to a volume identifier
462 sub path_to_volume_id
{
463 my ($cfg, $path) = @_;
465 my $ids = $cfg->{ids
};
467 my ($sid, $volname) = parse_volume_id
($path, 1);
469 if (my $scfg = $ids->{$sid}) {
471 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
472 my ($vtype, $name, $vmid) = $plugin->parse_volname($volname);
473 return ($vtype, $path);
479 # Note: abs_path() return undef if $path doesn not exist
480 # for example when nfs storage is not mounted
481 $path = abs_path
($path) || $path;
483 foreach my $sid (keys %$ids) {
484 my $scfg = $ids->{$sid};
485 next if !$scfg->{path
};
486 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
487 my $imagedir = $plugin->get_subdir($scfg, 'images');
488 my $isodir = $plugin->get_subdir($scfg, 'iso');
489 my $tmpldir = $plugin->get_subdir($scfg, 'vztmpl');
490 my $backupdir = $plugin->get_subdir($scfg, 'backup');
491 my $privatedir = $plugin->get_subdir($scfg, 'rootdir');
493 if ($path =~ m!^$imagedir/(\d+)/([^/\s]+)$!) {
497 my $vollist = $plugin->list_images($sid, $scfg, $vmid);
498 foreach my $info (@$vollist) {
499 my ($storeid, $volname) = parse_volume_id
($info->{volid
});
500 my $volpath = $plugin->path($scfg, $volname, $storeid);
501 if ($volpath eq $path) {
502 return ('images', $info->{volid
});
505 } elsif ($path =~ m!^$isodir/([^/]+\.[Ii][Ss][Oo])$!) {
507 return ('iso', "$sid:iso/$name");
508 } elsif ($path =~ m!^$tmpldir/([^/]+\.tar\.gz)$!) {
510 return ('vztmpl', "$sid:vztmpl/$name");
511 } elsif ($path =~ m!^$privatedir/(\d+)$!) {
513 return ('rootdir', "$sid:rootdir/$vmid");
514 } elsif ($path =~ m!^$backupdir/([^/]+\.(tar|tar\.gz|tar\.lzo|tgz|vma|vma\.gz|vma\.lzo))$!) {
516 return ('iso', "$sid:backup/$name");
520 # can't map path to volume id
525 my ($cfg, $volid, $snapname) = @_;
527 my ($storeid, $volname) = parse_volume_id
($volid);
529 my $scfg = storage_config
($cfg, $storeid);
531 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
532 my ($path, $owner, $vtype) = $plugin->path($scfg, $volname, $storeid, $snapname);
533 return wantarray ?
($path, $owner, $vtype) : $path;
536 sub abs_filesystem_path
{
537 my ($cfg, $volid) = @_;
540 if (PVE
::Storage
::parse_volume_id
($volid, 1)) {
541 PVE
::Storage
::activate_volumes
($cfg, [ $volid ]);
542 $path = PVE
::Storage
::path
($cfg, $volid);
545 my $abspath = abs_path
($volid);
546 if ($abspath && $abspath =~ m
|^(/.+)$|) {
547 $path = $1; # untaint any path
552 die "can't find file '$volid'\n" if !($path && -f
$path);
557 sub storage_migrate
{
558 my ($cfg, $volid, $target_sshinfo, $target_storeid, $target_volname, $base_snapshot, $snapshot, $ratelimit_bps, $insecure, $with_snapshots, $logfunc) = @_;
560 my ($storeid, $volname) = parse_volume_id
($volid);
561 $target_volname = $volname if !$target_volname;
563 my $scfg = storage_config
($cfg, $storeid);
565 # no need to migrate shared content
566 return if $storeid eq $target_storeid && $scfg->{shared
};
568 my $tcfg = storage_config
($cfg, $target_storeid);
570 my $target_volid = "${target_storeid}:${target_volname}";
572 my $target_ip = $target_sshinfo->{ip
};
573 my $errstr = "unable to migrate '$volid' to '${target_volid}' on host '$target_sshinfo->{name}'";
575 my $ssh = PVE
::Cluster
::ssh_info_to_command
($target_sshinfo);
576 my $ssh_base = PVE
::Cluster
::ssh_info_to_command_base
($target_sshinfo);
577 local $ENV{RSYNC_RSH
} = PVE
::Tools
::cmd2string
($ssh_base);
579 my @cstream = ([ '/usr/bin/cstream', '-t', $ratelimit_bps ])
580 if defined($ratelimit_bps);
582 my $migration_snapshot;
583 if (!defined($snapshot)) {
584 if ($scfg->{type
} eq 'zfspool') {
585 $migration_snapshot = 1;
586 $snapshot = '__migration__';
590 my @formats = volume_transfer_formats
($cfg, $volid, $volid, $snapshot, $base_snapshot, $with_snapshots);
591 die "cannot migrate from storage type '$scfg->{type}' to '$tcfg->{type}'\n" if !@formats;
592 my $format = $formats[0];
596 @insecurecmd = ('pvecm', 'mtunnel', '-run-command', 1);
597 if (my $network = $target_sshinfo->{network
}) {
598 push @insecurecmd, '-migration_network', $network;
602 $with_snapshots = $with_snapshots ?
1 : 0; # sanitize for passing as cli parameter
603 my $send = ['pvesm', 'export', $volid, $format, '-', '-with-snapshots', $with_snapshots];
604 my $recv = [@$ssh, @insecurecmd, '--', 'pvesm', 'import', $volid, $format, '-', '-with-snapshots', $with_snapshots];
605 if (defined($snapshot)) {
606 push @$send, '-snapshot', $snapshot
608 if ($migration_snapshot) {
609 push @$recv, '-delete-snapshot', $snapshot;
612 if (defined($base_snapshot)) {
613 # Check if the snapshot exists on the remote side:
614 push @$send, '-base', $base_snapshot;
615 push @$recv, '-base', $base_snapshot;
618 volume_snapshot
($cfg, $volid, $snapshot) if $migration_snapshot;
621 open(my $info, '-|', @$recv)
622 or die "receive command failed: $!\n";
623 my ($ip) = <$info> =~ /^($PVE::Tools::IPRE)$/ or die "no tunnel IP received\n";
624 my ($port) = <$info> =~ /^(\d+)$/ or die "no tunnel port received\n";
625 my $socket = IO
::Socket
::IP-
>new(PeerHost
=> $ip, PeerPort
=> $port, Type
=> SOCK_STREAM
)
626 or die "failed to connect to tunnel at $ip:$port\n";
627 # we won't be reading from the socket
628 shutdown($socket, 0);
629 run_command
([$send, @cstream], output
=> '>&'.fileno($socket));
630 # don't close the connection entirely otherwise the receiving end
631 # might not get all buffered data (and fails with 'connection reset by peer')
632 shutdown($socket, 1);
633 1 while <$info>; # wait for the remote process to finish
634 # now close the socket
636 if (!close($info)) { # does waitpid()
637 die "import failed: $!\n" if $!;
638 die "import failed: exit code ".($?>>8)."\n";
641 run_command
([$send, @cstream, $recv], logfunc
=> $logfunc);
645 warn "send/receive failed, cleaning up snapshot(s)..\n" if $err;
646 if ($migration_snapshot) {
647 eval { volume_snapshot_delete
($cfg, $volid, $snapshot, 0) };
648 warn "could not remove source snapshot: $@\n" if $@;
654 my ($cfg, $volid, $vmid, $snap) = @_;
656 my ($storeid, $volname) = parse_volume_id
($volid);
658 my $scfg = storage_config
($cfg, $storeid);
660 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
662 activate_storage
($cfg, $storeid);
664 # lock shared storage
665 return $plugin->cluster_lock_storage($storeid, $scfg->{shared
}, undef, sub {
666 my $volname = $plugin->clone_image($scfg, $storeid, $volname, $vmid, $snap);
667 return "$storeid:$volname";
671 sub vdisk_create_base
{
672 my ($cfg, $volid) = @_;
674 my ($storeid, $volname) = parse_volume_id
($volid);
676 my $scfg = storage_config
($cfg, $storeid);
678 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
680 activate_storage
($cfg, $storeid);
682 # lock shared storage
683 return $plugin->cluster_lock_storage($storeid, $scfg->{shared
}, undef, sub {
684 my $volname = $plugin->create_base($storeid, $scfg, $volname);
685 return "$storeid:$volname";
690 my ($cfg, $volid, $snapname) = @_;
692 my ($storeid, $volname) = parse_volume_id
($volid);
694 my $scfg = storage_config
($cfg, $storeid);
696 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
698 return $plugin->map_volume($storeid, $scfg, $volname, $snapname);
702 my ($cfg, $volid, $snapname) = @_;
704 my ($storeid, $volname) = parse_volume_id
($volid);
706 my $scfg = storage_config
($cfg, $storeid);
708 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
710 return $plugin->unmap_volume($storeid, $scfg, $volname, $snapname);
714 my ($cfg, $storeid, $vmid, $fmt, $name, $size) = @_;
716 die "no storage ID specified\n" if !$storeid;
718 PVE
::JSONSchema
::parse_storage_id
($storeid);
720 my $scfg = storage_config
($cfg, $storeid);
722 die "no VMID specified\n" if !$vmid;
724 $vmid = parse_vmid
($vmid);
726 my $defformat = PVE
::Storage
::Plugin
::default_format
($scfg);
728 $fmt = $defformat if !$fmt;
730 activate_storage
($cfg, $storeid);
732 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
734 # lock shared storage
735 return $plugin->cluster_lock_storage($storeid, $scfg->{shared
}, undef, sub {
736 my $old_umask = umask(umask|0037);
737 my $volname = eval { $plugin->alloc_image($storeid, $scfg, $vmid, $fmt, $name, $size) };
741 return "$storeid:$volname";
746 my ($cfg, $volid) = @_;
748 my ($storeid, $volname) = parse_volume_id
($volid);
749 my $scfg = storage_config
($cfg, $storeid);
750 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
752 activate_storage
($cfg, $storeid);
756 # lock shared storage
757 $plugin->cluster_lock_storage($storeid, $scfg->{shared
}, undef, sub {
758 # LVM-thin allows deletion of still referenced base volumes!
759 die "base volume '$volname' is still in use by linked clones\n"
760 if &$volume_is_base_and_used__no_lock($scfg, $storeid, $plugin, $volname);
762 my (undef, undef, undef, undef, undef, $isBase, $format) =
763 $plugin->parse_volname($volname);
764 $cleanup_worker = $plugin->free_image($storeid, $scfg, $volname, $isBase, $format);
767 return if !$cleanup_worker;
769 my $rpcenv = PVE
::RPCEnvironment
::get
();
770 my $authuser = $rpcenv->get_user();
772 $rpcenv->fork_worker('imgdel', undef, $authuser, $cleanup_worker);
775 #list iso or openvz template ($tt = <iso|vztmpl|backup>)
777 my ($cfg, $storeid, $tt) = @_;
779 die "unknown template type '$tt'\n"
780 if !($tt eq 'iso' || $tt eq 'vztmpl' || $tt eq 'backup');
782 my $ids = $cfg->{ids
};
784 storage_check_enabled
($cfg, $storeid) if ($storeid);
790 foreach my $sid (keys %$ids) {
791 next if $storeid && $storeid ne $sid;
793 my $scfg = $ids->{$sid};
794 my $type = $scfg->{type
};
796 next if !storage_check_enabled
($cfg, $sid, undef, 1);
798 next if $tt eq 'iso' && !$scfg->{content
}->{iso
};
799 next if $tt eq 'vztmpl' && !$scfg->{content
}->{vztmpl
};
800 next if $tt eq 'backup' && !$scfg->{content
}->{backup
};
802 activate_storage
($cfg, $sid);
805 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
807 my $path = $plugin->get_subdir($scfg, $tt);
809 foreach my $fn (<$path/*>) {
814 next if $fn !~ m!/([^/]+\.[Ii][Ss][Oo])$!;
816 $info = { volid
=> "$sid:iso/$1", format
=> 'iso' };
818 } elsif ($tt eq 'vztmpl') {
819 next if $fn !~ m!/([^/]+\.tar\.([gx]z))$!;
821 $info = { volid
=> "$sid:vztmpl/$1", format
=> "t$2" };
823 } elsif ($tt eq 'backup') {
824 next if $fn !~ m!/([^/]+\.(tar|tar\.gz|tar\.lzo|tgz|vma|vma\.gz|vma\.lzo))$!;
826 $info = { volid
=> "$sid:backup/$1", format
=> $2 };
829 $info->{size
} = -s
$fn;
831 push @{$res->{$sid}}, $info;
836 @{$res->{$sid}} = sort {lc($a->{volid
}) cmp lc ($b->{volid
}) } @{$res->{$sid}} if $res->{$sid};
844 my ($cfg, $storeid, $vmid, $vollist) = @_;
846 my $ids = $cfg->{ids
};
848 storage_check_enabled
($cfg, $storeid) if ($storeid);
852 # prepare/activate/refresh all storages
854 my $storage_list = [];
856 foreach my $volid (@$vollist) {
857 my ($sid, undef) = parse_volume_id
($volid);
858 next if !defined($ids->{$sid});
859 next if !storage_check_enabled
($cfg, $sid, undef, 1);
860 push @$storage_list, $sid;
863 foreach my $sid (keys %$ids) {
864 next if $storeid && $storeid ne $sid;
865 next if !storage_check_enabled
($cfg, $sid, undef, 1);
866 push @$storage_list, $sid;
872 activate_storage_list
($cfg, $storage_list, $cache);
874 foreach my $sid (keys %$ids) {
875 next if $storeid && $storeid ne $sid;
876 next if !storage_check_enabled
($cfg, $sid, undef, 1);
878 my $scfg = $ids->{$sid};
879 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
880 $res->{$sid} = $plugin->list_images($sid, $scfg, $vmid, $vollist, $cache);
881 @{$res->{$sid}} = sort {lc($a->{volid
}) cmp lc ($b->{volid
}) } @{$res->{$sid}} if $res->{$sid};
888 my ($cfg, $storeid, $vmid, $content) = @_;
890 my @ctypes = qw(images vztmpl iso backup);
892 my $cts = $content ?
[ $content ] : [ @ctypes ];
894 my $scfg = PVE
::Storage
::storage_config
($cfg, $storeid);
897 foreach my $ct (@$cts) {
899 if ($ct eq 'images') {
900 $data = vdisk_list
($cfg, $storeid, $vmid);
901 } elsif ($ct eq 'iso' && !defined($vmid)) {
902 $data = template_list
($cfg, $storeid, 'iso');
903 } elsif ($ct eq 'vztmpl'&& !defined($vmid)) {
904 $data = template_list
($cfg, $storeid, 'vztmpl');
905 } elsif ($ct eq 'backup') {
906 $data = template_list
($cfg, $storeid, 'backup');
907 foreach my $item (@{$data->{$storeid}}) {
908 if (defined($vmid)) {
909 @{$data->{$storeid}} = grep { $_->{volid
} =~ m/\S+-$vmid-\S+/ } @{$data->{$storeid}};
914 next if !$data || !$data->{$storeid};
916 foreach my $item (@{$data->{$storeid}}) {
917 $item->{content
} = $ct;
927 my $filename = "/sys/kernel/uevent_seqnum";
930 if (my $fh = IO
::File-
>new($filename, "r")) {
932 if ($line =~ m/^(\d+)$/) {
940 sub activate_storage
{
941 my ($cfg, $storeid, $cache) = @_;
943 $cache = {} if !$cache;
945 my $scfg = storage_check_enabled
($cfg, $storeid);
947 return if $cache->{activated
}->{$storeid};
949 $cache->{uevent_seqnum
} = uevent_seqnum
() if !$cache->{uevent_seqnum
};
951 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
954 my ($baseid, undef) = parse_volume_id
($scfg->{base
});
955 activate_storage
($cfg, $baseid, $cache);
958 if (!$plugin->check_connection($storeid, $scfg)) {
959 die "storage '$storeid' is not online\n";
962 $plugin->activate_storage($storeid, $scfg, $cache);
964 my $newseq = uevent_seqnum
();
966 # only call udevsettle if there are events
967 if ($newseq > $cache->{uevent_seqnum
}) {
969 system ("$UDEVADM settle --timeout=$timeout"); # ignore errors
970 $cache->{uevent_seqnum
} = $newseq;
973 $cache->{activated
}->{$storeid} = 1;
976 sub activate_storage_list
{
977 my ($cfg, $storeid_list, $cache) = @_;
979 $cache = {} if !$cache;
981 foreach my $storeid (@$storeid_list) {
982 activate_storage
($cfg, $storeid, $cache);
986 sub deactivate_storage
{
987 my ($cfg, $storeid) = @_;
989 my $scfg = storage_config
($cfg, $storeid);
990 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
993 $plugin->deactivate_storage($storeid, $scfg, $cache);
996 sub activate_volumes
{
997 my ($cfg, $vollist, $snapname) = @_;
999 return if !($vollist && scalar(@$vollist));
1001 my $storagehash = {};
1002 foreach my $volid (@$vollist) {
1003 my ($storeid, undef) = parse_volume_id
($volid);
1004 $storagehash->{$storeid} = 1;
1009 activate_storage_list
($cfg, [keys %$storagehash], $cache);
1011 foreach my $volid (@$vollist) {
1012 my ($storeid, $volname) = parse_volume_id
($volid);
1013 my $scfg = storage_config
($cfg, $storeid);
1014 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
1015 $plugin->activate_volume($storeid, $scfg, $volname, $snapname, $cache);
1019 sub deactivate_volumes
{
1020 my ($cfg, $vollist, $snapname) = @_;
1022 return if !($vollist && scalar(@$vollist));
1027 foreach my $volid (@$vollist) {
1028 my ($storeid, $volname) = parse_volume_id
($volid);
1030 my $scfg = storage_config
($cfg, $storeid);
1031 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
1034 $plugin->deactivate_volume($storeid, $scfg, $volname, $snapname, $cache);
1038 push @errlist, $volid;
1042 die "volume deactivation failed: " . join(' ', @errlist)
1043 if scalar(@errlist);
1047 my ($cfg, $content, $includeformat) = @_;
1049 my $ids = $cfg->{ids
};
1053 my @ctypes = PVE
::Tools
::split_list
($content);
1056 foreach my $storeid (keys %$ids) {
1057 my $storage_enabled = defined(storage_check_enabled
($cfg, $storeid, undef, 1));
1059 if (defined($content)) {
1061 foreach my $ctype (@ctypes) {
1062 if ($ids->{$storeid}->{content
}->{$ctype}) {
1067 next if !$want_ctype || !$storage_enabled;
1070 my $type = $ids->{$storeid}->{type
};
1072 $info->{$storeid} = {
1077 shared
=> $ids->{$storeid}->{shared
} ?
1 : 0,
1078 content
=> PVE
::Storage
::Plugin
::content_hash_to_string
($ids->{$storeid}->{content
}),
1080 enabled
=> $storage_enabled ?
1 : 0,
1083 push @$slist, $storeid;
1088 foreach my $storeid (keys %$ids) {
1089 my $scfg = $ids->{$storeid};
1091 next if !$info->{$storeid};
1092 next if !$info->{$storeid}->{enabled
};
1094 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
1095 if ($includeformat) {
1096 my $pd = $plugin->plugindata();
1097 $info->{$storeid}->{format
} = $pd->{format
}
1099 $info->{$storeid}->{select_existing
} = $pd->{select_existing
}
1100 if $pd->{select_existing
};
1103 eval { activate_storage
($cfg, $storeid, $cache); };
1109 my ($total, $avail, $used, $active) = eval { $plugin->status($storeid, $scfg, $cache); };
1112 $info->{$storeid}->{total
} = int($total);
1113 $info->{$storeid}->{avail
} = int($avail);
1114 $info->{$storeid}->{used
} = int($used);
1115 $info->{$storeid}->{active
} = $active;
1124 my ($packed_ip, $family);
1126 my @res = PVE
::Tools
::getaddrinfo_all
($server);
1127 $family = $res[0]->{family
};
1128 $packed_ip = (PVE
::Tools
::unpack_sockaddr_in46
($res[0]->{addr
}))[2];
1130 if (defined $packed_ip) {
1131 return Socket
::inet_ntop
($family, $packed_ip);
1137 my ($server_in) = @_;
1140 if (!($server = resolv_server
($server_in))) {
1141 die "unable to resolve address for server '${server_in}'\n";
1144 my $cmd = ['/sbin/showmount', '--no-headers', '--exports', $server];
1147 run_command
($cmd, outfunc
=> sub {
1150 # note: howto handle white spaces in export path??
1151 if ($line =~ m!^(/\S+)\s+(.+)$!) {
1160 my ($server_in, $user, $password, $domain) = @_;
1163 if (!($server = resolv_server
($server_in))) {
1164 die "unable to resolve address for server '${server_in}'\n";
1167 # we support only Windows grater than 2012 cifsscan so use smb3
1168 my $cmd = ['/usr/bin/smbclient', '-m', 'smb3', '-d', '0', '-L', $server];
1169 if (defined($user)) {
1170 die "password is required" if !defined($password);
1171 push @$cmd, '-U', "$user\%$password";
1172 push @$cmd, '-W', $domain if defined($domain);
1181 if ($line =~ m/(\S+)\s*Disk\s*(\S*)/) {
1183 } elsif ($line =~ m/(NT_STATUS_(\S*))/) {
1196 my $cmd = ['zfs', 'list', '-t', 'filesystem', '-H', '-o', 'name,avail,used'];
1199 run_command
($cmd, outfunc
=> sub {
1202 if ($line =~m/^(\S+)\s+(\S+)\s+(\S+)$/) {
1203 my ($pool, $size_str, $used_str) = ($1, $2, $3);
1204 my $size = PVE
::Storage
::ZFSPoolPlugin
::zfs_parse_size
($size_str);
1205 my $used = PVE
::Storage
::ZFSPoolPlugin
::zfs_parse_size
($used_str);
1206 # ignore subvolumes generated by our ZFSPoolPlugin
1207 return if $pool =~ m!/subvol-\d+-[^/]+$!;
1208 return if $pool =~ m!/basevol-\d+-[^/]+$!;
1209 push @$res, { pool
=> $pool, size
=> $size, free
=> $size-$used };
1217 my ($portal, $noerr) = @_;
1219 my ($server, $port) = PVE
::Tools
::parse_host_and_port
($portal);
1221 if (my $ip = resolv_server
($server)) {
1223 $server = "[$server]" if $server =~ /^$IPV6RE$/;
1224 return $port ?
"$server:$port" : $server;
1227 return undef if $noerr;
1229 raise_param_exc
({ portal
=> "unable to resolve portal address '$portal'" });
1234 my ($portal_in) = @_;
1237 if (!($portal = resolv_portal
($portal_in))) {
1238 die "unable to parse/resolve portal address '${portal_in}'\n";
1241 return PVE
::Storage
::ISCSIPlugin
::iscsi_discovery
($portal);
1244 sub storage_default_format
{
1245 my ($cfg, $storeid) = @_;
1247 my $scfg = storage_config
($cfg, $storeid);
1249 return PVE
::Storage
::Plugin
::default_format
($scfg);
1252 sub vgroup_is_used
{
1253 my ($cfg, $vgname) = @_;
1255 foreach my $storeid (keys %{$cfg->{ids
}}) {
1256 my $scfg = storage_config
($cfg, $storeid);
1257 if ($scfg->{type
} eq 'lvm' && $scfg->{vgname
} eq $vgname) {
1265 sub target_is_used
{
1266 my ($cfg, $target) = @_;
1268 foreach my $storeid (keys %{$cfg->{ids
}}) {
1269 my $scfg = storage_config
($cfg, $storeid);
1270 if ($scfg->{type
} eq 'iscsi' && $scfg->{target
} eq $target) {
1278 sub volume_is_used
{
1279 my ($cfg, $volid) = @_;
1281 foreach my $storeid (keys %{$cfg->{ids
}}) {
1282 my $scfg = storage_config
($cfg, $storeid);
1283 if ($scfg->{base
} && $scfg->{base
} eq $volid) {
1291 sub storage_is_used
{
1292 my ($cfg, $storeid) = @_;
1294 foreach my $sid (keys %{$cfg->{ids
}}) {
1295 my $scfg = storage_config
($cfg, $sid);
1296 next if !$scfg->{base
};
1297 my ($st) = parse_volume_id
($scfg->{base
});
1298 return 1 if $st && $st eq $storeid;
1305 my ($list, $func) = @_;
1309 foreach my $sid (keys %$list) {
1310 foreach my $info (@{$list->{$sid}}) {
1311 my $volid = $info->{volid
};
1312 my ($sid1, $volname) = parse_volume_id
($volid, 1);
1313 if ($sid1 && $sid1 eq $sid) {
1314 &$func ($volid, $sid, $info);
1316 warn "detected strange volid '$volid' in volume list for '$sid'\n";
1322 sub extract_vzdump_config_tar
{
1323 my ($archive, $conf_re) = @_;
1325 die "ERROR: file '$archive' does not exist\n" if ! -f
$archive;
1327 my $pid = open(my $fh, '-|', 'tar', 'tf', $archive) ||
1328 die "unable to open file '$archive'\n";
1331 while (defined($file = <$fh>)) {
1332 if ($file =~ $conf_re) {
1333 $file = $1; # untaint
1342 die "ERROR: archive contains no configuration file\n" if !$file;
1348 $raw .= "$output\n";
1351 PVE
::Tools
::run_command
(['tar', '-xpOf', $archive, $file, '--occurrence'], outfunc
=> $out);
1353 return wantarray ?
($raw, $file) : $raw;
1356 sub extract_vzdump_config_vma
{
1357 my ($archive, $comp) = @_;
1363 $raw .= "$output\n";
1369 if ($comp eq 'gz') {
1370 $uncomp = ["zcat", $archive];
1371 } elsif ($comp eq 'lzo') {
1372 $uncomp = ["lzop", "-d", "-c", $archive];
1374 die "unknown compression method '$comp'\n";
1376 $cmd = [$uncomp, ["vma", "config", "-"]];
1378 # in some cases, lzop/zcat exits with 1 when its stdout pipe is
1379 # closed early by vma, detect this and ignore the exit code later
1384 if ($output =~ m/lzop: Broken pipe: <stdout>/ || $output =~ m/gzip: stdout: Broken pipe/) {
1386 } elsif (!defined ($errstring) && $output !~ m/^\s*$/) {
1387 $errstring = "Failed to extract config from VMA archive: $output\n";
1391 # in other cases, the pipeline will exit with exit code 141
1392 # because of the broken pipe, handle / ignore this as well
1395 $rc = PVE
::Tools
::run_command
($cmd, outfunc
=> $out, errfunc
=> $err, noerr
=> 1);
1399 # use exit code if no stderr output and not just broken pipe
1400 if (!$errstring && !$broken_pipe && $rc != 0 && $rc != 141) {
1401 die "$rerr\n" if $rerr;
1402 die "config extraction failed with exit code $rc\n";
1404 die "$errstring\n" if $errstring;
1406 # simple case without compression and weird piping behaviour
1407 PVE
::Tools
::run_command
(["vma", "config", $archive], outfunc
=> $out);
1410 return wantarray ?
($raw, undef) : $raw;
1413 sub extract_vzdump_config
{
1414 my ($cfg, $volid) = @_;
1416 my $archive = abs_filesystem_path
($cfg, $volid);
1418 if ($volid =~ /vzdump-(lxc|openvz)-\d+-(\d{4})_(\d{2})_(\d{2})-(\d{2})_(\d{2})_(\d{2})\.(tgz|(tar(\.(gz|lzo))?))$/) {
1419 return extract_vzdump_config_tar
($archive, qr!^(\./etc/vzdump/(pct|vps)\.conf)$!);
1420 } elsif ($volid =~ /vzdump-qemu-\d+-(\d{4})_(\d{2})_(\d{2})-(\d{2})_(\d{2})_(\d{2})\.(tgz|((tar|vma)(\.(gz|lzo))?))$/) {
1428 $comp = $11 if defined($11);
1431 if ($format eq 'tar') {
1432 return extract_vzdump_config_tar
($archive, qr!\(\./qemu-server\.conf\)!);
1434 return extract_vzdump_config_vma
($archive, $comp);
1437 die "cannot determine backup guest type for backup archive '$volid'\n";
1442 my ($cfg, $fh, $volid, $format, $snapshot, $base_snapshot, $with_snapshots) = @_;
1444 my ($storeid, $volname) = parse_volume_id
($volid, 1);
1445 die "cannot export volume '$volid'\n" if !$storeid;
1446 my $scfg = storage_config
($cfg, $storeid);
1447 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
1448 return $plugin->volume_export($scfg, $storeid, $fh, $volname, $format,
1449 $snapshot, $base_snapshot, $with_snapshots);
1453 my ($cfg, $fh, $volid, $format, $base_snapshot, $with_snapshots) = @_;
1455 my ($storeid, $volname) = parse_volume_id
($volid, 1);
1456 die "cannot import into volume '$volid'\n" if !$storeid;
1457 my $scfg = storage_config
($cfg, $storeid);
1458 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
1459 return $plugin->volume_import($scfg, $storeid, $fh, $volname, $format,
1460 $base_snapshot, $with_snapshots);
1463 sub volume_export_formats
{
1464 my ($cfg, $volid, $snapshot, $base_snapshot, $with_snapshots) = @_;
1466 my ($storeid, $volname) = parse_volume_id
($volid, 1);
1467 return if !$storeid;
1468 my $scfg = storage_config
($cfg, $storeid);
1469 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
1470 return $plugin->volume_export_formats($scfg, $storeid, $volname,
1471 $snapshot, $base_snapshot,
1475 sub volume_import_formats
{
1476 my ($cfg, $volid, $base_snapshot, $with_snapshots) = @_;
1478 my ($storeid, $volname) = parse_volume_id
($volid, 1);
1479 return if !$storeid;
1480 my $scfg = storage_config
($cfg, $storeid);
1481 my $plugin = PVE
::Storage
::Plugin-
>lookup($scfg->{type
});
1482 return $plugin->volume_import_formats($scfg, $storeid, $volname,
1483 $base_snapshot, $with_snapshots);
1486 sub volume_transfer_formats
{
1487 my ($cfg, $src_volid, $dst_volid, $snapshot, $base_snapshot, $with_snapshots) = @_;
1488 my @export_formats = volume_export_formats
($cfg, $src_volid, $snapshot, $base_snapshot, $with_snapshots);
1489 my @import_formats = volume_import_formats
($cfg, $dst_volid, $base_snapshot, $with_snapshots);
1490 my %import_hash = map { $_ => 1 } @import_formats;
1491 my @common = grep { $import_hash{$_} } @export_formats;
1495 # bash completion helper
1497 sub complete_storage
{
1498 my ($cmdname, $pname, $cvalue) = @_;
1500 my $cfg = PVE
::Storage
::config
();
1502 return $cmdname eq 'add' ?
[] : [ PVE
::Storage
::storage_ids
($cfg) ];
1505 sub complete_storage_enabled
{
1506 my ($cmdname, $pname, $cvalue) = @_;
1510 my $cfg = PVE
::Storage
::config
();
1511 foreach my $sid (keys %{$cfg->{ids
}}) {
1512 next if !storage_check_enabled
($cfg, $sid, undef, 1);
1518 sub complete_content_type
{
1519 my ($cmdname, $pname, $cvalue) = @_;
1521 return [qw(rootdir images vztmpl iso backup)];
1524 sub complete_volume
{
1525 my ($cmdname, $pname, $cvalue) = @_;
1529 my $storage_list = complete_storage_enabled
();
1531 if ($cvalue =~ m/^([^:]+):/) {
1532 $storage_list = [ $1 ];
1534 if (scalar(@$storage_list) > 1) {
1535 # only list storage IDs to avoid large listings
1537 foreach my $storeid (@$storage_list) {
1538 # Hack: simply return 2 artificial values, so that
1539 # completions does not finish
1540 push @$res, "$storeid:volname", "$storeid:...";
1547 foreach my $storeid (@$storage_list) {
1548 my $vollist = PVE
::Storage
::volume_list
($cfg, $storeid);
1550 foreach my $item (@$vollist) {
1551 push @$res, $item->{volid
};
1558 # Various io-heavy operations require io/bandwidth limits which can be
1559 # configured on multiple levels: The global defaults in datacenter.cfg, and
1560 # per-storage overrides. When we want to do a restore from storage A to storage
1561 # B, we should take the smaller limit defined for storages A and B, and if no
1562 # such limit was specified, use the one from datacenter.cfg.
1563 sub get_bandwidth_limit
{
1564 my ($operation, $storage_list, $override) = @_;
1566 # called for each limit (global, per-storage) with the 'default' and the
1567 # $operation limit and should udpate $override for every limit affecting
1569 my $use_global_limits = 0;
1570 my $apply_limit = sub {
1572 if (defined($bwlimit)) {
1573 my $limits = PVE
::JSONSchema
::parse_property_string
('bwlimit', $bwlimit);
1574 my $limit = $limits->{$operation} // $limits->{default};
1575 if (defined($limit)) {
1576 if (!$override || $limit < $override) {
1582 # If there was no applicable limit, try to apply the global ones.
1583 $use_global_limits = 1;
1586 my ($rpcenv, $authuser);
1587 if (defined($override)) {
1588 $rpcenv = PVE
::RPCEnvironment-
>get();
1589 $authuser = $rpcenv->get_user();
1592 # Apply per-storage limits - if there are storages involved.
1593 if (@$storage_list) {
1594 my $config = config
();
1596 # The Datastore.Allocate permission allows us to modify the per-storage
1597 # limits, therefore it also allows us to override them.
1598 # Since we have most likely multiple storages to check, do a quick check on
1599 # the general '/storage' path to see if we can skip the checks entirely:
1600 return $override if $rpcenv && $rpcenv->check($authuser, '/storage', ['Datastore.Allocate'], 1);
1603 foreach my $storage (@$storage_list) {
1604 # Avoid duplicate checks:
1605 next if $done{$storage};
1606 $done{$storage} = 1;
1608 # Otherwise we may still have individual /storage/$ID permissions:
1609 if (!$rpcenv || !$rpcenv->check($authuser, "/storage/$storage", ['Datastore.Allocate'], 1)) {
1610 # And if not: apply the limits.
1611 my $storecfg = storage_config
($config, $storage);
1612 $apply_limit->($storecfg->{bwlimit
});
1616 # Storage limits take precedence over the datacenter defaults, so if
1617 # a limit was applied:
1618 return $override if !$use_global_limits;
1621 # Sys.Modify on '/' means we can change datacenter.cfg which contains the
1622 # global default limits.
1623 if (!$rpcenv || !$rpcenv->check($authuser, '/', ['Sys.Modify'], 1)) {
1624 # So if we cannot modify global limits, apply them to our currently
1625 # requested override.
1626 my $dc = cfs_read_file
('datacenter.cfg');
1627 $apply_limit->($dc->{bwlimit
});
1633 # checks if the storage id is available and dies if not
1634 sub assert_sid_unused
{
1638 if (my $scfg = storage_config
($cfg, $sid, 1)) {
1639 die "storage ID '$sid' already defined\n";