---
PVE/Storage/LVMPlugin.pm | 73 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 73 insertions(+)
diff --git a/PVE/Storage/LVMPlugin.pm b/PVE/Storage/LVMPlugin.pm
index a2b3feb..9633e4c 100644
--- a/PVE/Storage/LVMPlugin.pm
+++ b/PVE/Storage/LVMPlugin.pm
@@ -503,4 +503,77 @@ sub volume_has_feature {
return undef;
}
+sub volume_export_formats {
+ my ($class, $scfg, $storeid, $volname, $snapshot, $base_snapshot,
$with_snapshots) = @_;
+ return () if defined($snapshot); # lvm-thin only
+ return volume_import_formats($class, $scfg, $storeid, $volname,
$base_snapshot, $with_snapshots);
+}
+
+sub volume_export {
+ my ($class, $scfg, $storeid, $fh, $volname, $format, $snapshot,
$base_snapshot, $with_snapshots) = @_;
+ die "volume export format $format not available for $class\n"
+ if $format ne 'raw+size';
+ die "cannot export volumes together with their snapshots in $class\n"
+ if $with_snapshots;
+ die "cannot export a snapshot in $class\n" if defined($snapshot);
+ die "cannot export an incremental stream in $class\n" if
defined($base_snapshot);
+ my $file = $class->path($scfg, $volname, $storeid);
+ my $size;
+ # should be faster than querying LVM, also checks for the device file's
availability
+ run_command(['/sbin/blockdev', '--getsize64', $file], outfunc => sub {
+ my ($line) = @_;
+ die "unexpected output from /sbin/blockdev: $line\n" if $line !~
/^(\d+)$/;
+ $size = int($1);
+ });
+ PVE::Storage::Plugin::write_common_header($fh, $size);
+ run_command(['dd', "if=$file", "bs=64k"], output => '>&'.fileno($fh));
+}
+
+sub volume_import_formats {
+ my ($class, $scfg, $storeid, $volname, $base_snapshot, $with_snapshots) =
@_;
+ return () if $with_snapshots; # not supported
+ return () if defined($base_snapshot); # not supported
+ return ('raw+size');
+}
+
+sub volume_import {
+ my ($class, $scfg, $storeid, $fh, $volname, $format, $base_snapshot,
$with_snapshots) = @_;
+ die "volume import format $format not available for $class\n"
+ if $format ne 'raw+size';
+ die "cannot import volumes together with their snapshots in $class\n"
+ if $with_snapshots;
+ die "cannot import an incremental stream in $class\n" if
defined($base_snapshot);
+
+ my ($vtype, $name, $vmid, $basename, $basevmid, $isBase, $file_format) =
+ $class->parse_volname($volname);
+ die "cannot import format $format into a file of format $file_format\n"
+ if $file_format ne 'raw';
+
+ my $vg = $scfg->{vgname};
+ my $lvs = lvm_list_volumes($vg);
+ die "volume $vg/$volname already exists\n"
+ if $lvs->{$vg}->{$volname};
+
+ my ($size) = PVE::Storage::Plugin::read_common_header($fh);
+ $size = int($size/1024);
+
+ eval {
+ my $allocname = $class->alloc_image($storeid, $scfg, $vmid, 'raw',
$name, $size);
+ if ($allocname ne $volname) {
+ my $oldname = $volname;
+ $volname = $allocname; # Let the cleanup code know what to free
+ die "internal error: unexpected allocated name: '$allocname' !=
'$oldname'\n";
+ }
+ my $file = $class->path($scfg, $volname, $storeid)
+ or die "internal error: failed to get path to newly allocated
volume $volname\n";
+ run_command(['dd', "of=$file", 'conv=sparse', 'bs=64k'],
+ input => '<&'.fileno($fh));
+ };
+ if (my $err = $@) {
+ eval { $class->free_image($storeid, $scfg, $volname, 0) };
+ warn $@ if $@;
+ die $err;
+ }
+}
+
1;
--
2.11.0
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