+sub check_pool_exist {
+ my ($self, $pool, $noerr) = @_;
+
+ my $cfg = $self->{user_cfg};
+
+ return 1 if $cfg->{pools}->{$pool};
+
+ return undef if $noerr;
+
+ raise_perm_exc("pool '$pool' does not exist");
+}
+
+sub check_vm_perm {
+ my ($self, $user, $vmid, $pool, $privs, $any, $noerr) = @_;
+
+ my $cfg = $self->{user_cfg};
+
+ if ($pool) {
+ return if $self->check_full($user, "/pool/$pool", $privs, $any, 1);
+ }
+ return $self->check_full($user, "/vms/$vmid", $privs, $any, $noerr);
+};
+
+sub check_volume_access {
+ my ($self, $user, $storecfg, $vmid, $volid) = @_;
+
+ # test if we have read access to volid
+
+ my ($sid, $volname) = PVE::Storage::parse_volume_id($volid, 1);
+ if ($sid) {
+ my ($vtype, undef, $ownervm) = PVE::Storage::parse_volname($storecfg, $volid);
+ if ($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) {
+ $self->check($user, "/storage/$sid", ['Datastore.AllocateSpace']);
+ $self->check($user, "/vms/$ownervm", ['VM.Backup']);
+ } else {
+ # allow if we are Datastore administrator
+ $self->check($user, "/storage/$sid", ['Datastore.Allocate']);
+ }
+ } else {
+ die "Only root can pass arbitrary filesystem paths."
+ if $user ne 'root@pam';
+ }
+
+ return undef;
+}
+