Land #11332, Add support for mettle debug

lib/msf/base/sessions/mettle_config.rb

@@ -71,6 +71,14 @@ module Msf
           opts[:name] ||= ds['PayloadProcessCommandLine']
         end
 
+        if ds['RemoteMeterpreterDebugFile'] != ''
+          opts[:log_file] ||= ds['RemoteMeterpreterDebugFile']
+        end
+
+        log_level = ds['MeterpreterDebugLevel'].to_i
+        log_level = 0 if log_level < 0
+        log_level = 3 if log_level > 3
+        opts[:debug] = log_level
         opts[:uuid] ||= generate_payload_uuid
 
         case opts[:scheme]

lib/msf/core/payload/linux.rb

@@ -82,6 +82,20 @@ module Msf::Payload::Linux
             "false"
           ]
         ),
+        Msf::OptInt.new('MeterpreterDebugLevel',
+          [
+            true,
+            "Set debug level for meterpreter 0-3 (Default output is strerr)",
+            0
+          ]
+        ),
+        Msf::OptString.new('RemoteMeterpreterDebugFile',
+          [
+            false,
+            "Redirect Debug Info to a Log File",
+            ""
+          ]
+        ),
       ], Msf::Payload::Linux)
 
     ret