Fix datastore options

modules/auxiliary/scanner/smb/smb_version.rb

@@ -36,12 +36,20 @@ class Metasploit3 < Msf::Auxiliary
     deregister_options('RPORT')
   end
 
+  def rport
+    @rport || datastore['RPORT']
+  end
+
+  def smbdirect
+    @smbdirect || datastore['SMBDirect']
+  end
+
   # Fingerprint a single host
   def run_host(ip)
     [[445, true], [139, false]].each do |info|
 
-    datastore['RPORT'] = info[0]
-    datastore['SMBDirect'] = info[1]
+    @rport = info[0]
+    @smbdirect = info[1]
     self.simple = nil
 
     begin