+sub check_connection {
+ my ($class, $storeid, $scfg) = @_;
+
+ my $server = $scfg->{server};
+ my $opts = $scfg->{options};
+
+ my $cmd;
+ if (defined($opts) && $opts =~ /vers=4.*/) {
+ my $ip = PVE::JSONSchema::pve_verify_ip($server, 1);
+ if (!defined($ip)) {
+ $ip = PVE::Network::get_ip_from_hostname($server);
+ }
+
+ my $transport = PVE::JSONSchema::pve_verify_ipv4($ip, 1) ? 'tcp' : 'tcp6';
+
+ # nfsv4 uses a pseudo-filesystem always beginning with /
+ # no exports are listed
+ $cmd = ['/usr/sbin/rpcinfo', '-T', $transport, $ip, 'nfs', '4'];
+ } else {
+ $cmd = ['/sbin/showmount', '--no-headers', '--exports', $server];
+ }
+
+ eval { run_command($cmd, timeout => 10, outfunc => sub {}, errfunc => sub {}) };
+ if (my $err = $@) {
+ return 0;
+ }
+
+ return 1;
+}
+
+sub get_volume_notes {
+ my $class = shift;
+ PVE::Storage::DirPlugin::get_volume_notes($class, @_);
+}
+sub update_volume_notes {
+ my $class = shift;
+ PVE::Storage::DirPlugin::update_volume_notes($class, @_);
+}
+