use Cwd 'abs_path';
use Socket;
-use PVE::Tools qw(run_command file_read_firstline $IPV6RE);
+use PVE::Tools qw(run_command file_read_firstline dir_glob_foreach $IPV6RE);
use PVE::Cluster qw(cfs_read_file cfs_write_file cfs_lock_file);
use PVE::Exception qw(raise_param_exc);
use PVE::JSONSchema;
use PVE::Storage::ZFSPlugin;
use PVE::Storage::DRBDPlugin;
-# load and initialize all plugins
+# Storage API version. Icrement it on changes in storage API interface.
+use constant APIVER => 1;
+
+# load standard plugins
PVE::Storage::DirPlugin->register();
PVE::Storage::LVMPlugin->register();
PVE::Storage::LvmThinPlugin->register();
PVE::Storage::ZFSPoolPlugin->register();
PVE::Storage::ZFSPlugin->register();
PVE::Storage::DRBDPlugin->register();
+
+# load third-party plugins
+if ( -d '/usr/share/perl5/PVE/Storage/Custom' ) {
+ dir_glob_foreach('/usr/share/perl5/PVE/Storage/Custom', '.*\.pm$', sub {
+ my ($file) = @_;
+ my $modname = 'PVE::Storage::Custom::' . $file;
+ $modname =~ s!\.pm$!!;
+ $file = 'PVE/Storage/Custom/' . $file;
+
+ eval {
+ require $file;
+ };
+ if ($@) {
+ warn $@;
+ # Check storage API version and that file is really storage plugin.
+ } elsif ($modname->isa('PVE::Storage::Plugin') && $modname->can('api') && $modname->api() == APIVER) {
+ eval {
+ import $file;
+ $modname->register();
+ };
+ warn $@ if $@;
+ } else {
+ warn "Error loading storage plugin \"$modname\" because of API version mismatch. Please, update it.\n"
+ }
+ });
+}
+
+# initialize all plugins
PVE::Storage::Plugin->init();
my $UDEVADM = '/sbin/udevadm';
sub storage_config {
my ($cfg, $storeid, $noerr) = @_;
- die "no storage id specified\n" if !$storeid;
+ die "no storage ID specified\n" if !$storeid;
my $scfg = $cfg->{ids}->{$storeid};
}
}
+sub volume_snapshot_list {
+ my ($cfg, $volid, $prefix) = @_;
+
+ my ($storeid, $volname) = parse_volume_id($volid, 1);
+ if ($storeid) {
+ my $scfg = storage_config($cfg, $storeid);
+ my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
+ return $plugin->volume_snapshot_list($scfg, $storeid, $volname, $prefix);
+ } elsif ($volid =~ m|^(/.+)$| && -e $volid) {
+ die "send file/device '$volid' is not possible\n";
+ } else {
+ die "unable to parse volume ID '$volid'\n";
+ }
+ # return an empty array if dataset does not exist.
+ # youngest snap first
+}
+
sub get_image_dir {
my ($cfg, $storeid, $vmid) = @_;
return int($vmid);
}
+# NOTE: basename and basevmid are always undef for LVM-thin, where the
+# clone -> base reference is not encoded in the volume ID.
+# see note in PVE::Storage::LvmThinPlugin for details.
sub parse_volname {
my ($cfg, $volid) = @_;
return PVE::Storage::Plugin::parse_volume_id($volid, $noerr);
}
-sub volume_is_base {
- my ($cfg, $volid) = @_;
+# test if we have read access to volid
+sub check_volume_access {
+ my ($rpcenv, $user, $cfg, $vmid, $volid) = @_;
my ($sid, $volname) = parse_volume_id($volid, 1);
- return 0 if !$sid;
-
- if (my $scfg = $cfg->{ids}->{$sid}) {
- my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
- my ($vtype, $name, $vmid, $basename, $basevmid, $isBase) =
- $plugin->parse_volname($volname);
- return $isBase ? 1 : 0;
- } else {
- # stale volid with undefined storage - so we can just guess
- if ($volid =~ m/base-/) {
- return 1;
+ if ($sid) {
+ my ($vtype, undef, $ownervm) = parse_volname($cfg, $volid);
+ if ($vtype eq 'iso' || $vtype eq 'vztmpl') {
+ # we simply allow access
+ } elsif (defined($ownervm) && defined($vmid) && ($ownervm == $vmid)) {
+ # we are owner - allow access
+ } elsif ($vtype eq 'backup' && $ownervm) {
+ $rpcenv->check($user, "/storage/$sid", ['Datastore.AllocateSpace']);
+ $rpcenv->check($user, "/vms/$ownervm", ['VM.Backup']);
+ } else {
+ # allow if we are Datastore administrator
+ $rpcenv->check($user, "/storage/$sid", ['Datastore.Allocate']);
}
+ } else {
+ die "Only root can pass arbitrary filesystem paths."
+ if $user ne 'root@pam';
}
+ return undef;
+}
+
+my $volume_is_base_and_used__no_lock = sub {
+ my ($scfg, $storeid, $plugin, $volname) = @_;
+
+ my ($vtype, $name, $vmid, undef, undef, $isBase, undef) =
+ $plugin->parse_volname($volname);
+
+ if ($isBase) {
+ my $vollist = $plugin->list_images($storeid, $scfg);
+ foreach my $info (@$vollist) {
+ my (undef, $tmpvolname) = parse_volume_id($info->{volid});
+ my $basename = undef;
+ my $basevmid = undef;
+
+ eval{
+ (undef, undef, undef, $basename, $basevmid) =
+ $plugin->parse_volname($tmpvolname);
+ };
+
+ if ($basename && defined($basevmid) && $basevmid == $vmid && $basename eq $name) {
+ return 1;
+ }
+ }
+ }
return 0;
+};
+
+# NOTE: this check does not work for LVM-thin, where the clone -> base
+# reference is not encoded in the volume ID.
+# see note in PVE::Storage::LvmThinPlugin for details.
+sub volume_is_base_and_used {
+ my ($cfg, $volid) = @_;
+
+ my ($storeid, $volname) = parse_volume_id($volid);
+ my $scfg = storage_config($cfg, $storeid);
+ my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
+
+ $plugin->cluster_lock_storage($storeid, $scfg->{shared}, undef, sub {
+ return &$volume_is_base_and_used__no_lock($scfg, $storeid, $plugin, $volname);
+ });
}
# try to map a filesystem path to a volume identifier
}
sub storage_migrate {
- my ($cfg, $volid, $target_host, $target_storeid, $target_volname) = @_;
+ my ($cfg, $volid, $target_host, $target_storeid, $target_volname, $base_snapshot) = @_;
my ($storeid, $volname) = parse_volume_id($volid);
$target_volname = $volname if !$target_volname;
local $ENV{RSYNC_RSH} = $ssh;
+ my $no_incremental = sub {
+ my ($type) = @_;
+ die "incremental migration not supported on storage type $type\n"
+ if defined($base_snapshot);
+ };
+
# only implemented for file system based storage
if ($scfg->{path}) {
- if ($tcfg->{path}) {
+ $no_incremental->($scfg->{type});
+ if ($tcfg->{path}) {
my $src_plugin = PVE::Storage::Plugin->lookup($scfg->{type});
my $dst_plugin = PVE::Storage::Plugin->lookup($tcfg->{type});
my $src = $src_plugin->path($scfg, $volname, $storeid);
if ($tcfg->{type} eq 'zfspool') {
- die "$errstr - pool on target has not same name as source!"
+ die "$errstr - pool on target does not have the same name as on source!"
if $tcfg->{pool} ne $scfg->{pool};
my (undef, $volname) = parse_volname($cfg, $volid);
-
my $zfspath = "$scfg->{pool}\/$volname";
- my $snap = ['zfs', 'snapshot', "$zfspath\@__migration__"];
+ my $send = ['pvesm', 'export', $volid, 'zfs', '-', '-snapshot', '__migration__', '-with-snapshots', '1'];
+ my $recv = ['ssh', "root\@$target_host", '--', 'pvesm', 'import', $volid, 'zfs', '-', '-with-snapshots', '1'];
+ my $free = ['ssh', "root\@$target_host", '--', 'pvesm', 'free', $volid, '-snapshot', '__migration__'];
- my $send = [['zfs', 'send', '-Rpv', "$zfspath\@__migration__"], ['ssh', "root\@$target_host",
- 'zfs', 'recv', $zfspath]];
+ if (defined($base_snapshot)) {
+ # Check if the snapshot exists on the remote side:
+ push @$send, '-snapshot', $base_snapshot;
+ push @$recv, '-base', $base_snapshot;
+ }
- my $destroy_target = ['ssh', "root\@$target_host", 'zfs', 'destroy', "$zfspath\@__migration__"];
- run_command($snap);
+ volume_snapshot($cfg, $volid, '__migration__');
eval{
- run_command($send);
+ run_command([$send, $recv]);
};
- my $err;
- if ($err = $@){
- run_command(['zfs', 'destroy', "$zfspath\@__migration__"]);
- die $err;
- }
- run_command($destroy_target);
-
+ my $err = $@;
+ warn "send/receive failed, cleaning up snapshot(s)..\n" if $err;
+ eval { volume_snapshot_delete($cfg, $volid, '__migration__', 0) };
+ warn "could not remove source snapshot: $@\n" if $@;
+ eval { run_command($free) };
+ warn "could not remove target snapshot: $@\n" if $@;
+ die $err if $err;
} else {
die "$errstr - target type $tcfg->{type} is not valid\n";
}
} elsif ($scfg->{type} eq 'lvmthin' || $scfg->{type} eq 'lvm') {
+ $no_incremental->($scfg->{type});
- if ($tcfg->{type} eq 'lvmthin' || $tcfg->{type} eq 'lvm') {
-
- die "$errstr - pool on target has not same name as source!"
- if $tcfg->{type} ne $scfg->{type};
+ if (($scfg->{type} eq $tcfg->{type}) &&
+ ($tcfg->{type} eq 'lvmthin' || $tcfg->{type} eq 'lvm')) {
- my (undef, $volname) = parse_volname($cfg, $volid);
+ my (undef, $volname, $vmid) = parse_volname($cfg, $volid);
my $size = volume_size_info($cfg, $volid, 5);
- my $path = path($cfg, $volid);
-
- $volname =~ m/^vm-(\d+)-/;
- my $vmid = $1;
+ my $src = path($cfg, $volid);
+ my $dst = path($cfg, $target_volid);
run_command(['/usr/bin/ssh', "root\@${target_host}",
'pvesm', 'alloc', $target_storeid, $vmid,
- $volname, $size/1024]);
+ $target_volname, int($size/1024)]);
eval {
- run_command([["dd", "if=$path"],
- ["/usr/bin/ssh", "root\@${target_host}", "-C",
- "dd", 'conv=sparse', "of=$path"]]);
+ if ($tcfg->{type} eq 'lvmthin') {
+ run_command([["dd", "if=$src", "bs=4k"],["/usr/bin/ssh", "root\@${target_host}",
+ "dd", 'conv=sparse', "of=$dst", "bs=4k"]]);
+ } else {
+ run_command([["dd", "if=$src", "bs=4k"],["/usr/bin/ssh", "root\@${target_host}",
+ "dd", "of=$dst", "bs=4k"]]);
+ }
};
if (my $err = $@) {
run_command(['/usr/bin/ssh', "root\@${target_host}",
- 'pvesm', 'free', $volid]);
- } else {
- vdisk_free($cfg, $volid);
+ 'pvesm', 'free', $target_volid]);
+ die $err;
}
} else {
- die "$errstr - target type $tcfg->{type} is not valid\n";
+ die "$errstr - migrate from source type '$scfg->{type}' to '$tcfg->{type}' not implemented\n";
}
} else {
die "$errstr - source type '$scfg->{type}' not implemented\n";
sub vdisk_alloc {
my ($cfg, $storeid, $vmid, $fmt, $name, $size) = @_;
- die "no storage id specified\n" if !$storeid;
+ die "no storage ID specified\n" if !$storeid;
PVE::JSONSchema::parse_storage_id($storeid);
my ($cfg, $volid) = @_;
my ($storeid, $volname) = parse_volume_id($volid);
-
my $scfg = storage_config($cfg, $storeid);
-
my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
activate_storage($cfg, $storeid);
# lock shared storage
$plugin->cluster_lock_storage($storeid, $scfg->{shared}, undef, sub {
+ # LVM-thin allows deletion of still referenced base volumes!
+ die "base volume '$volname' is still in use by linked clones\n"
+ if &$volume_is_base_and_used__no_lock($scfg, $storeid, $plugin, $volname);
- my ($vtype, $name, $vmid, undef, undef, $isBase, $format) =
+ my (undef, undef, undef, undef, undef, $isBase, $format) =
$plugin->parse_volname($volname);
- if ($isBase) {
- my $vollist = $plugin->list_images($storeid, $scfg);
- foreach my $info (@$vollist) {
- my (undef, $tmpvolname) = parse_volume_id($info->{volid});
- my $basename = undef;
- my $basevmid = undef;
-
- eval{
- (undef, undef, undef, $basename, $basevmid) =
- $plugin->parse_volname($tmpvolname);
- };
-
- if ($basename && defined($basevmid) && $basevmid == $vmid && $basename eq $name) {
- die "base volume '$volname' is still in use " .
- "(use by '$tmpvolname')\n";
- }
- }
- }
$cleanup_worker = $plugin->free_image($storeid, $scfg, $volname, $isBase, $format);
});
}
}
- die "volume deativation failed: " . join(' ', @errlist)
+ die "volume deactivation failed: " . join(' ', @errlist)
if scalar(@errlist);
}
my $ids = $cfg->{ids};
my $info = {};
-
+
my @ctypes = PVE::Tools::split_list($content);
-
+
my $slist = [];
foreach my $storeid (keys %$ids) {
}
next if !$want_ctype;
}
-
+
my $type = $ids->{$storeid}->{type};
$info->{$storeid} = {
eval { ($total, $avail, $used, $active) = $plugin->status($storeid, $scfg, $cache); };
warn $@ if $@;
next if !$active;
- $info->{$storeid}->{total} = $total;
- $info->{$storeid}->{avail} = $avail;
- $info->{$storeid}->{used} = $used;
+ $info->{$storeid}->{total} = int($total);
+ $info->{$storeid}->{avail} = int($avail);
+ $info->{$storeid}->{used} = int($used);
$info->{$storeid}->{active} = $active;
}
my $file;
while (defined($file = <$fh>)) {
- if ($file =~ m!$conf_re!) {
+ if ($file =~ $conf_re) {
$file = $1; # untaint
last;
}
my $rerr = $@;
# use exit code if no stderr output and not just broken pipe
- if (!$errstring && !$broken_pipe && $rc > 0 && $rc != 141) {
+ if (!$errstring && !$broken_pipe && $rc != 0 && $rc != 141) {
die "$rerr\n" if $rerr;
die "config extraction failed with exit code $rc\n";
}
my $archive = abs_filesystem_path($cfg, $volid);
- if ($volid =~ /\/vzdump-(lxc|openvz)-\d+-(\d{4})_(\d{2})_(\d{2})-(\d{2})_(\d{2})_(\d{2})\.(tgz|(tar(\.(gz|lzo))?))$/) {
- return extract_vzdump_config_tar($archive,'^(\./etc/vzdump/(pct|vps)\.conf)$');
- } elsif ($volid =~ /\/vzdump-qemu-\d+-(\d{4})_(\d{2})_(\d{2})-(\d{2})_(\d{2})_(\d{2})\.(tgz|((tar|vma)(\.(gz|lzo))?))$/) {
+ if ($volid =~ /vzdump-(lxc|openvz)-\d+-(\d{4})_(\d{2})_(\d{2})-(\d{2})_(\d{2})_(\d{2})\.(tgz|(tar(\.(gz|lzo))?))$/) {
+ return extract_vzdump_config_tar($archive, qr!^(\./etc/vzdump/(pct|vps)\.conf)$!);
+ } elsif ($volid =~ /vzdump-qemu-\d+-(\d{4})_(\d{2})_(\d{2})-(\d{2})_(\d{2})_(\d{2})\.(tgz|((tar|vma)(\.(gz|lzo))?))$/) {
my $format;
my $comp;
if ($7 eq 'tgz') {
}
}
+sub volume_export {
+ my ($cfg, $fh, $volid, $format, $snapshot, $base_snapshot, $with_snapshots) = @_;
+
+ my ($storeid, $volname) = parse_volume_id($volid, 1);
+ die "cannot export volume '$volid'\n" if !$storeid;
+ my $scfg = storage_config($cfg, $storeid);
+ my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
+ return $plugin->volume_export($scfg, $storeid, $fh, $volname, $format,
+ $snapshot, $base_snapshot, $with_snapshots);
+}
+
+sub volume_import {
+ my ($cfg, $fh, $volid, $format, $base_snapshot, $with_snapshots) = @_;
+
+ my ($storeid, $volname) = parse_volume_id($volid, 1);
+ die "cannot import into volume '$volid'\n" if !$storeid;
+ my $scfg = storage_config($cfg, $storeid);
+ my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
+ return $plugin->volume_import($scfg, $storeid, $fh, $volname, $format,
+ $base_snapshot, $with_snapshots);
+}
+
+sub volume_export_formats {
+ my ($cfg, $volid, $snapshot, $base_snapshot, $with_snapshots) = @_;
+
+ my ($storeid, $volname) = parse_volume_id($volid, 1);
+ return if !$storeid;
+ my $scfg = storage_config($cfg, $storeid);
+ my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
+ return $plugin->volume_export_formats($scfg, $storeid, $volname,
+ $base_snapshot, $with_snapshots);
+}
+
+sub volume_import_formats {
+ my ($cfg, $volid, $base_snapshot, $with_snapshots) = @_;
+
+ my ($storeid, $volname) = parse_volume_id($volid, 1);
+ return if !$storeid;
+ my $scfg = storage_config($cfg, $storeid);
+ my $plugin = PVE::Storage::Plugin->lookup($scfg->{type});
+ return $plugin->volume_import_formats($scfg, $storeid, $volname,
+ $base_snapshot, $with_snapshots);
+}
+
+sub volume_transfer_formats {
+ my ($cfg, $src_volid, $dst_volid, $snapshot, $base_snapshot, $with_snapshots) = @_;
+ my @export_formats = volume_export_formats($cfg, $src_volid, $snapshot, $base_snapshot, $with_snapshots);
+ my @import_formats = volume_import_formats($cfg, $dst_volid, $base_snapshot, $with_snapshots);
+ my %import_hash = map { $_ => 1 } @import_formats;
+ my @common = grep { $import_hash{$_} } @export_formats;
+ return @common;
+}
+
# bash completion helper
sub complete_storage {
projects / pve-storage.git / blobdiff