check for a ancestors instead of a straight comparison of classes when matching payloads for generics, fixes #3477

git-svn-id: file:///home/svn/framework3/trunk@11585 4d416f70-5f16-0410-b530-b9f4589650da

lib/msf/core/payload_set.rb

@@ -239,10 +239,10 @@ class PayloadSet < ModuleSet
 			next if (p.kind_of?(Msf::Payload::Generic))
 
 			# Check to see if the handler classes match.
-			next if (handler and p.handler_klass != handler)
+			next if (handler and not p.handler_klass.ancestors.include?(handler))
 
 			# Check to see if the session classes match.
-			next if (session and p.session != session)
+			next if (session and not p.session.ancestors.include?(session))
 
 			# Check for matching payload types
 			next if (payload_type and p.payload_type != payload_type)