Add Fetch Multi payload support

lib/msf/base/sessions/meterpreter_multi_linux.rb

@@ -0,0 +1,26 @@
+# -*- coding: binary -*-
+
+module Msf
+  module Sessions
+    ###
+    #
+    # This class creates a platform-specific, architecture agnostic meterpreter session type
+    #
+    ###
+    class MeterpreterMultiLinux < Msf::Sessions::Meterpreter
+      def supports_ssl?
+        false
+      end
+
+      def supports_zlib?
+        false
+      end
+
+      def initialize(rstream, opts = {})
+        super
+        self.base_platform = 'linux'
+        self.base_arch = ARCH_ANY # will be populated automatically
+      end
+    end
+  end
+end