Add documentation for SMB_COM_READ_ANDX

lib/msf/core/exploit/smb/server/share/command/read_andx.rb

@@ -5,12 +5,13 @@ module Msf
     module Share
       module Command
         module ReadAndx
+
+          # Handles an SMB_COM_READ_ANDX command, used by the client to read data from a
+          # file.
           #
-          # Responds to a client READ_ANDX request
-          # This function sends chunks of the payload to the client
-          # by reading the offset and length requested by the client
-          # and sending the appropriate chunk of the payload
-          #
+          # @param c [Socket] The client sending the request.
+          # @param buff [String] The data including the client request.
+          # @return [Fixnum] The number of bytes returned to the client as response.
           def smb_cmd_read_andx(c, buff)
             pkt = CONST::SMB_READ_PKT.make_struct
             pkt.from_s(buff)
@@ -25,6 +26,14 @@ module Msf
             })
           end
 
+          # Builds and sends an SMB_COM_NT_CREATE_ANDX response.
+          #
+          # @param c [Socket] The client to answer.
+          # @param opts [Hash{Symbol => <Fixnum, String>}] Response custom values.
+          # @option opts [Fixnum] :data_len_low The length of the file data sent back.
+          # @option opts [Fixnum] :byte_count The length of the file data sent back.
+          # @option opts [String] :data The bytes read from the file.
+          # @return [Fixnum] The number of bytes returned to the client as response.
           def send_read_andx_res(c, opts = {})
             data_len_low = opts[:data_len_low]
             byte_count = opts[:byte_count]